diff --git a/Gemfile b/Gemfile
index ecc9a8afd..a188559e6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -88,6 +88,9 @@ gem 'writeexcel'
 gem 'icalendar'
 gem 'browser'
 
+# integrations
+gem 'slack-notifier'
+
 # event machine
 gem 'eventmachine'
 gem 'em-websocket'
diff --git a/Gemfile.lock b/Gemfile.lock
index c0deb2051..f568c61ef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -267,6 +267,7 @@ GEM
     simplecov-html (0.10.0)
     simplecov-rcov (0.2.3)
       simplecov (>= 0.4.1)
+    slack-notifier (1.5.1)
     slop (3.6.0)
     spring (1.6.4)
     sprockets (3.5.2)
@@ -361,6 +362,7 @@ DEPENDENCIES
   simple-rss
   simplecov
   simplecov-rcov
+  slack-notifier
   spring
   sprockets
   sqlite3
diff --git a/app/assets/javascripts/app/controllers/_integration/icinga.coffee b/app/assets/javascripts/app/controllers/_integration/icinga.coffee
index a5ad04487..3c486a06b 100644
--- a/app/assets/javascripts/app/controllers/_integration/icinga.coffee
+++ b/app/assets/javascripts/app/controllers/_integration/icinga.coffee
@@ -1,12 +1,30 @@
-class Icinga extends App.ControllerTabs
-  header: 'Icinga'
-  constructor: ->
-    super
-    return if !@authenticate(false, 'Admin')
-    @title 'Icinga', true
-    @tabs = [
-      { name: 'Base', 'target': 'base', controller: App.SettingsArea, params: { area: 'Integration::Icinga' } }
-    ]
-    @render()
+class Index extends App.ControllerIntegrationBase
+  featureIntegration: 'icinga_integration'
+  featureName: 'Icinga'
+  featureConfig: 'icinga_config'
+  description: [
+    ['This service receives emails from %s and creates tickets with host and service.', 'Icinga']
+    ['If the host and service is recovered again, the ticket will be closed automatically.']
+  ]
 
-App.Config.set('IntegrationIcinga', { prio: 1100, parent: '#integration', name: 'Icinga', target: '#integration/icinga', controller: Icinga, role: ['Admin'] }, 'NavBarIntegration')
+  form: (localeEl) ->
+    new App.SettingsForm(
+      area: 'Integration::Icinga'
+      el: localeEl.find('.js-form')
+    )
+
+class State
+  @current: ->
+    App.Setting.get('icinga_integration')
+
+App.Config.set(
+  'IntegrationIcinga'
+  {
+    name: 'Icinga'
+    target: '#system/integration/icinga'
+    description: 'A open source monitoring tool.'
+    controller: Index
+    state: State
+  }
+  'NavBarIntegrations'
+)
diff --git a/app/assets/javascripts/app/controllers/_integration/mattermost.coffee b/app/assets/javascripts/app/controllers/_integration/mattermost.coffee
deleted file mode 100644
index ce340da0d..000000000
--- a/app/assets/javascripts/app/controllers/_integration/mattermost.coffee
+++ /dev/null
@@ -1,12 +0,0 @@
-class Mattermost extends App.ControllerTabs
-  header: 'Mattermost'
-  constructor: ->
-    super
-    return if !@authenticate(false, 'Admin')
-    @title 'Mattermost', true
-    @tabs = [
-      { name: 'Base', 'target': 'base', controller: App.SettingsArea, params: { area: 'Integration::Mattermost' } }
-    ]
-    @render()
-
-App.Config.set('IntegrationMattermost', { prio: 1000, parent: '#integration', name: 'Mattermost', target: '#integration/mattermost', controller: Mattermost, role: ['Admin'] }, 'NavBarIntegration')
diff --git a/app/assets/javascripts/app/controllers/_integration/nagios.coffee b/app/assets/javascripts/app/controllers/_integration/nagios.coffee
index 471fa8516..ab8bf6394 100644
--- a/app/assets/javascripts/app/controllers/_integration/nagios.coffee
+++ b/app/assets/javascripts/app/controllers/_integration/nagios.coffee
@@ -1,12 +1,30 @@
-class Nagios extends App.ControllerTabs
-  header: 'Nagios'
-  constructor: ->
-    super
-    return if !@authenticate(false, 'Admin')
-    @title 'Nagios', true
-    @tabs = [
-      { name: 'Base', 'target': 'base', controller: App.SettingsArea, params: { area: 'Integration::Nagios' } }
-    ]
-    @render()
+class Index extends App.ControllerIntegrationBase
+  featureIntegration: 'nagios_integration'
+  featureName: 'Nagios'
+  featureConfig: 'nagios_config'
+  description: [
+    ['This service receives emails from %s and creates tickets with host and service.', 'Nagios']
+    ['If the host and service is recovered again, the ticket will be closed automatically.']
+  ]
 
-App.Config.set('IntegrationNagios', { prio: 1200, parent: '#integration', name: 'Nagios', target: '#integration/nagios', controller: Nagios, role: ['Admin'] }, 'NavBarIntegration')
+  form: (localeEl) ->
+    new App.SettingsForm(
+      area: 'Integration::Nagios'
+      el: localeEl.find('.js-form')
+    )
+
+class State
+  @current: ->
+    App.Setting.get('nagios_integration')
+
+App.Config.set(
+  'IntegrationNagios'
+  {
+    name: 'Nagios'
+    target: '#system/integration/nagios'
+    description: 'A open source monitoring tool.'
+    controller: Index
+    state: State
+  }
+  'NavBarIntegrations'
+)
diff --git a/app/assets/javascripts/app/controllers/_integration/slack.coffee b/app/assets/javascripts/app/controllers/_integration/slack.coffee
new file mode 100644
index 000000000..de3169477
--- /dev/null
+++ b/app/assets/javascripts/app/controllers/_integration/slack.coffee
@@ -0,0 +1,73 @@
+class Index extends App.ControllerIntegrationBase
+  featureIntegration: 'slack_integration'
+  featureName: 'Slack'
+  featureConfig: 'slack_config'
+  description: [
+    ['This service sends notifications to your %s channel.', 'Slack']
+    ['To setup this Service you need to create a new |"Incoming webhook"| in your %s integration panel, and enter the Webhook URL below.', 'Slack']
+  ]
+
+  form: (localEl) =>
+
+    params = App.Setting.get(@featureConfig)
+    if params && params.items
+      params = params.items[0] || {}
+
+    options =
+      create: '1. Ticket Create'
+      update: '2. Ticket Update'
+      reminder_reached: '3. Ticket Reminder Reached'
+      escalation: '4. Ticket Escalation'
+      escalation_warning: '5. Ticket Escalation Warning'
+
+    configureAttributes = [
+      { name: 'types',    display: 'Trigger',  tag: 'checkbox', options: options, 'null': false, class: 'vertical', note: 'Where notification is sent.' },
+      { name: 'group_id', display: 'Group',    tag: 'select', relation: 'Group', multiple: true, 'null': false, note: 'Only for this groups.' },
+      { name: 'webhook',  display: 'Webhook',  tag: 'input', type: 'text', limit: 200, 'null': false, placeholder: 'https://hooks.slack.com/services/...' },
+      { name: 'username', display: 'username', tag: 'input', type: 'text', limit: 100, 'null': false, placeholder: 'username' },
+      { name: 'channel',  display: 'channel',  tag: 'input', type: 'text', limit: 100, 'null': true, placeholder: '#channel' },
+    ]
+    console.log('p', params)
+    settings = []
+    for item in configureAttributes
+      setting =
+        options:
+          form: [item]
+        name: item.name
+        description: item.note || ''
+        title: item.display
+      settings.push setting
+
+    formEl = $( App.view('settings/form')(
+      settings: settings
+    ))
+
+    for setting in settings
+      configure_attribute = setting.options['form']
+      configure_attribute[0].display = ''
+      value = params[setting.name]
+      localParams = {}
+      localParams[setting.name] = value
+      new App.ControllerForm(
+        el: formEl.find("[data-name=#{setting.name}]")
+        model: { configure_attributes: configure_attribute, className: '' }
+        params: localParams
+      )
+
+    localEl.find('.js-form').html(formEl)
+
+class State
+  @current: ->
+    App.Setting.get('slack_integration')
+
+App.Config.set(
+  'IntegrationSlack'
+  {
+    name: 'Slack'
+    target: '#system/integration/slack'
+    description: 'A team communication tool for the 21st century.'
+    controller: Index
+    state: State
+  }
+  'NavBarIntegrations'
+)
diff --git a/app/assets/javascripts/app/controllers/_profile/linked_accounts.coffee b/app/assets/javascripts/app/controllers/_profile/linked_accounts.coffee
index 893498d51..587b2132e 100644
--- a/app/assets/javascripts/app/controllers/_profile/linked_accounts.coffee
+++ b/app/assets/javascripts/app/controllers/_profile/linked_accounts.coffee
@@ -37,7 +37,7 @@ class Index extends App.Controller
     }
     auth_providers = []
     for key, provider of auth_provider_all
-      if @Config.get( provider.config ) is true || @Config.get( provider.config ) is 'true'
+      if @Config.get(provider.config) is true || @Config.get(provider.config) is 'true'
         auth_providers.push provider
 
     @html App.view('profile/linked_accounts')(
@@ -52,19 +52,19 @@ class Index extends App.Controller
 
     # get data
     @ajax(
-      id:   'account'
-      type: 'DELETE'
-      url:  @apiPath + '/users/account'
-      data: JSON.stringify({ provider: provider, uid: uid })
+      id:          'account'
+      type:        'DELETE'
+      url:         @apiPath + '/users/account'
+      data:        JSON.stringify(provider: provider, uid: uid)
       processData: true
-      success: @success
-      error:   @error
+      success:     @success
+      error:       @error
     )
 
   success: (data, status, xhr) =>
     @notify(
       type: 'success'
-      msg:  App.i18n.translateContent( 'Successfully!' )
+      msg:  App.i18n.translateContent('Successfully!')
     )
     update = =>
       @render()
@@ -72,10 +72,10 @@ class Index extends App.Controller
 
   error: (xhr, status, error) =>
     @render()
-    data = JSON.parse( xhr.responseText )
+    data = JSON.parse(xhr.responseText)
     @notify(
       type: 'error'
-      msg:  App.i18n.translateContent( data.message )
+      msg:  App.i18n.translateContent(data.message)
     )
 
-App.Config.set( 'LinkedAccounts', { prio: 4000, name: 'Linked Accounts', parent: '#profile', target: '#profile/linked', controller: Index }, 'NavBarProfile' )
+App.Config.set('LinkedAccounts', { prio: 4000, name: 'Linked Accounts', parent: '#profile', target: '#profile/linked', controller: Index }, 'NavBarProfile')
diff --git a/app/assets/javascripts/app/controllers/_settings/area.coffee b/app/assets/javascripts/app/controllers/_settings/area.coffee
index 36a718730..f6bdc1674 100644
--- a/app/assets/javascripts/app/controllers/_settings/area.coffee
+++ b/app/assets/javascripts/app/controllers/_settings/area.coffee
@@ -1,3 +1,93 @@
+class App.SettingsForm extends App.Controller
+  events:
+    'submit form': 'update'
+
+  constructor: ->
+    super
+
+    # check authentication
+    return if !@authenticate()
+
+    @subscribeId = App.Setting.subscribe(@render, initFetch: true, clear: false)
+
+  render: =>
+
+    # serach area settings
+    settings = App.Setting.search(
+      filter:
+        area: @area
+    )
+
+    # filter online service settings
+    if App.Config.get('system_online_service')
+      settings = _.filter(settings, (setting) ->
+        return if setting.online_service
+        return if setting.preferences && setting.preferences.online_service_disable
+        setting
+      )
+      return if _.isEmpty(settings)
+
+    # sort by prio
+    settings = _.sortBy( settings, (setting) ->
+      return if !setting.preferences
+      setting.preferences.prio
+    )
+
+    localEl = $( App.view('settings/form')(
+      settings: settings
+    ))
+
+    for setting in settings
+      configure_attributes = setting.options['form']
+      value = App.Setting.get(setting.name)
+      params = {}
+      params[setting.name] = value
+      new App.ControllerForm(
+        el: localEl.find("[data-name=#{setting.name}]")
+        model: { configure_attributes: configure_attributes, className: '' }
+        params: params
+      )
+    @html localEl
+
+  update: (e) =>
+    e.preventDefault()
+    @formDisable(e)
+    params = @formParam(e.target)
+
+    ui = @
+    count = 0
+    for name, value of params
+      if App.Setting.findByAttribute('name', name)
+        count += 1
+        App.Setting.set(
+          name,
+          value,
+          done: ->
+            ui.formEnable(e)
+            count -= 1
+            if count == 0
+              App.Event.trigger 'notify', {
+                type:    'success'
+                msg:     App.i18n.translateContent('Update successful!')
+                timeout: 2000
+              }
+
+              # rerender ui || get new collections and session data
+              if @preferences
+                if @preferences.render
+                  App.Event.trigger( 'ui:rerender' )
+
+                if @preferences.session_check
+                  App.Auth.loginCheck()
+
+          fail: (settings, details) ->
+            App.Event.trigger 'notify', {
+              type:    'error'
+              msg:     App.i18n.translateContent(details.error_human || details.error || 'Unable to update object!')
+              timeout: 2000
+            }
+        )
+
 class App.SettingsArea extends App.Controller
   constructor: ->
     super
@@ -115,11 +205,11 @@ class App.SettingsAreaItem extends App.Controller
 
           if @setting.preferences.session_check
             App.Auth.loginCheck()
-      fail: ->
+      fail: (settings, details) ->
         ui.formEnable(e)
         App.Event.trigger 'notify', {
           type:    'error'
-          msg:     App.i18n.translateContent('Can\'t update item!')
+          msg:     App.i18n.translateContent(details.error_human || details.error || 'Unable to update object!')
           timeout: 2000
         }
     )
diff --git a/app/assets/javascripts/app/controllers/integrations.coffee b/app/assets/javascripts/app/controllers/integrations.coffee
index 5de52cf83..57570bf1c 100644
--- a/app/assets/javascripts/app/controllers/integrations.coffee
+++ b/app/assets/javascripts/app/controllers/integrations.coffee
@@ -1,8 +1,41 @@
-class IndexRouter extends App.ControllerNavSidbar
-  authenticateRequired: true
-  configKey: 'NavBarIntegration'
+class Index extends App.ControllerContent
+  constructor: ->
+    super
 
-App.Config.set('integration', IndexRouter, 'Routes')
-App.Config.set('integration/:target', IndexRouter, 'Routes')
+    # check authentication
+    return if !@authenticate(false, 'Admin')
 
-App.Config.set('Integration', { prio: 1000, name: 'Integration', target: '#integration', role: ['Admin'] }, 'NavBarIntegration')
+    @title 'Integrations', true
+
+    @integrationItems = App.Config.get('NavBarIntegrations')
+
+    if !@integration
+      @subscribeId = App.Setting.subscribe(@render, initFetch: true, clear: false)
+      return
+
+    for key, value of @integrationItems
+      if value.target is "#system/#{@target}/#{@integration}"
+        config = value
+        break
+
+    new config.controller(
+      el: @el.closest('.main')
+    )
+
+  render: =>
+    integrations = []
+    for key, value of @integrationItems
+      value.key = key
+      integrations.push value
+    integrations = _.sortBy(integrations, (item) -> return item.name)
+
+    @html App.view('integration/index')(
+      head:         'Integrations'
+      integrations: integrations
+    )
+
+  release: =>
+    if @subscribeId
+      App.Setting.unsubscribe(@subscribeId)
+
+App.Config.set('Integration', { prio: 1000, name: 'Integrations', parent: '#system', target: '#system/integration', controller: Index, role: ['Admin'] }, 'NavBarAdmin')
diff --git a/app/assets/javascripts/app/controllers/manage.coffee b/app/assets/javascripts/app/controllers/manage.coffee
index f59d7bb72..5ab127c7d 100644
--- a/app/assets/javascripts/app/controllers/manage.coffee
+++ b/app/assets/javascripts/app/controllers/manage.coffee
@@ -8,6 +8,7 @@ App.Config.set('settings/:target', IndexRouter, 'Routes')
 App.Config.set('channels/:target', IndexRouter, 'Routes')
 App.Config.set('channels/:target/:channel_id', IndexRouter, 'Routes')
 App.Config.set('system/:target', IndexRouter, 'Routes')
+App.Config.set('system/:target/:integration', IndexRouter, 'Routes')
 
 App.Config.set('Manage', { prio: 1000, name: 'Manage', target: '#manage', role: ['Admin'] }, 'NavBarAdmin')
 App.Config.set('Channels', { prio: 2500, name: 'Channels', target: '#channels', role: ['Admin'] }, 'NavBarAdmin')
diff --git a/app/assets/javascripts/app/controllers/package.coffee b/app/assets/javascripts/app/controllers/package.coffee
index e2c53ae30..a110789cd 100644
--- a/app/assets/javascripts/app/controllers/package.coffee
+++ b/app/assets/javascripts/app/controllers/package.coffee
@@ -58,4 +58,4 @@ class Index extends App.ControllerContent
           @load()
         )
 
-App.Config.set( 'Packages', { prio: 1000, name: 'Packages', parent: '#system', target: '#system/package', controller: Index, role: ['Admin'] }, 'NavBarAdmin' )
+App.Config.set('Packages', { prio: 1000, name: 'Packages', parent: '#system', target: '#system/package', controller: Index, role: ['Admin'] }, 'NavBarAdmin')
diff --git a/app/assets/javascripts/app/models/setting.coffee b/app/assets/javascripts/app/models/setting.coffee
index 1879df407..baedf47f0 100644
--- a/app/assets/javascripts/app/models/setting.coffee
+++ b/app/assets/javascripts/app/models/setting.coffee
@@ -2,3 +2,13 @@ class App.Setting extends App.Model
   @configure 'Setting', 'name', 'state_current'
   @extend Spine.Model.Ajax
   @url: @apiPath + '/settings'
+
+  @get: (name) ->
+    setting = App.Setting.findByAttribute('name', name)
+    setting.state_current.value
+
+  @set: (name, value, options = {}) ->
+    setting = App.Setting.findByAttribute('name', name)
+    setting.state_current.value = value
+    setting.save(options)
+    App.Config.set(name, value)
diff --git a/app/assets/javascripts/app/views/integration/base.jst.eco b/app/assets/javascripts/app/views/integration/base.jst.eco
new file mode 100644
index 000000000..d941bd965
--- /dev/null
+++ b/app/assets/javascripts/app/views/integration/base.jst.eco
@@ -0,0 +1,17 @@
+<div class="page-header">
+  <div class="page-header-title">
+    <div class="zammad-switch zammad-switch--small js-switch">
+       <input name="<%- @feature %>" type="checkbox" id="setting-switch" <% if @featureEnabled: %>checked<% end %>>
+       <label for="setting-switch"></label>
+    </div>
+    <h1><%- @T(@header) %></h1>
+  </div>
+</div>
+<div class="page-content">
+  <% if @description: %>
+    <% for item in @description: %>
+      <p><%- @T(item[0], item[1], item[2]) %></p>
+    <% end %>
+  <% end %>
+  <div class="js-form"></div>
+</div>
\ No newline at end of file
diff --git a/app/assets/javascripts/app/views/integration/index.jst.eco b/app/assets/javascripts/app/views/integration/index.jst.eco
new file mode 100644
index 000000000..feddea317
--- /dev/null
+++ b/app/assets/javascripts/app/views/integration/index.jst.eco
@@ -0,0 +1,29 @@
+<div class="page-header-title">
+  <h1><%- @T(@head) %></h1>
+</div>
+<div class="page-content">
+  <table class="table table-striped table-hover">
+    <thead>
+      <tr>
+        <th style="width: 30px;"></th>
+        <th style="width: 40%;"><%- @T('Service') %></th>
+        <th><%- @T('Description') %></th>
+      </tr>
+    </thead>
+    <tbody>
+    <% for integration in @integrations: %>
+      <tr data-key="<%= integration.key %>">
+        <td>
+          <% if !integration.state.current(): %>
+            <%- @Icon('status', 'inactive inline') %>
+          <% else: %>
+            <%- @Icon('status', 'ok inline') %>
+          <% end %>
+        </td>
+        <td><a href="<%- integration.target %>"><%= integration.name %></a></td>
+        <td><%= integration.description %></td>
+      </tr>
+    <% end %>
+    </tbody>
+  </table>
+</div>
diff --git a/app/assets/javascripts/app/views/settings/form.jst.eco b/app/assets/javascripts/app/views/settings/form.jst.eco
new file mode 100644
index 000000000..8596311c9
--- /dev/null
+++ b/app/assets/javascripts/app/views/settings/form.jst.eco
@@ -0,0 +1,21 @@
+<form>
+  <div class="settings-entry">
+    <table class="settings-list" style="width: 100%;">
+      <thead>
+        <tr>
+          <th width="15%"><%- @T('Title') %>
+          <th width="50%"><%- @T('Value') %>
+          <th width="35%"><%- @T('Description') %>
+      </thead>
+      <tbody>
+<% for setting in @settings: %>
+        <tr>
+          <td><%- @T(setting.title) %>
+          <td data-name="<%- setting.name %>">
+          <td><p class="help-text"><%- @RichText(setting.description) %></p>
+<% end %>
+      </tbody>
+    </table>
+  </div>
+  <button type="submit" class="btn btn--primary"><%- @T('Submit') %></button>
+</form>
\ No newline at end of file
diff --git a/app/assets/javascripts/app/views/settings/item.jst.eco b/app/assets/javascripts/app/views/settings/item.jst.eco
index b4b72d923..88a89dc98 100644
--- a/app/assets/javascripts/app/views/settings/item.jst.eco
+++ b/app/assets/javascripts/app/views/settings/item.jst.eco
@@ -1,8 +1,8 @@
 <form class="settings-entry" id="<%= @setting.name %>">
-  <h2><%- @T( @setting.title ) %></h2>
-  <p class="help-text"><%- @RichText( @setting.description ) %></p>
+  <h2><%- @T(@setting.title) %></h2>
+  <p class="help-text"><%- @RichText(@setting.description) %></p>
   <div class="horizontal end">
     <div class="form-item flex"></div>
-    <button type="submit" class="btn btn--primary"><%- @T( 'Submit' ) %></button>
+    <button type="submit" class="btn btn--primary"><%- @T('Submit') %></button>
   </div>
 </form>
\ No newline at end of file
diff --git a/app/assets/stylesheets/zammad.scss b/app/assets/stylesheets/zammad.scss
index bbe837494..4c7c0eb01 100644
--- a/app/assets/stylesheets/zammad.scss
+++ b/app/assets/stylesheets/zammad.scss
@@ -6962,6 +6962,7 @@ output {
   }
   
   th, td {
+    vertical-align: top;
     padding: 10px;
     border: 1px solid hsl(198,18%,86%);
   }
diff --git a/app/models/observer/ticket/notification.rb b/app/models/observer/ticket/notification.rb
deleted file mode 100644
index 35ce83c91..000000000
--- a/app/models/observer/ticket/notification.rb
+++ /dev/null
@@ -1,180 +0,0 @@
-# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
-
-require 'event_buffer'
-require 'notification_factory'
-
-class Observer::Ticket::Notification < ActiveRecord::Observer
-  observe :ticket, 'ticket::_article'
-
-  def self.transaction(params)
-
-    return if params[:disable_notification]
-
-    # return if we run import mode
-    return if Setting.get('import_mode')
-
-    # get buffer
-    list = EventBuffer.list('notification')
-
-    # reset buffer
-    EventBuffer.reset('notification')
-
-    via_web = false
-    if ENV['RACK_ENV'] || Rails.configuration.webserver_is_active
-      via_web = true
-    end
-
-    # get uniq objects
-    list_objects = get_uniq_changes(list)
-    list_objects.each {|_ticket_id, item|
-
-      # send background job
-      Delayed::Job.enqueue(Observer::Ticket::Notification::BackgroundJob.new(item, via_web))
-    }
-  end
-
-=begin
-
-  result = get_uniq_changes(events)
-
-  result = {
-    1 => {
-      type: 'create',
-      ticket_id: 123,
-      article_id: 123,
-    },
-    9 => {
-      type: 'update',
-      ticket_id: 123,
-      changes: {
-        attribute1: [before, now],
-        attribute2: [before, now],
-      }
-    },
-  }
-
-  result = {
-    9 => {
-      type: 'update',
-      ticket_id: 123,
-      article_id: 123,
-      changes: {
-        attribute1: [before, now],
-        attribute2: [before, now],
-      }
-    },
-  }
-
-=end
-
-  def self.get_uniq_changes(events)
-    list_objects = {}
-    events.each { |event|
-
-      # get current state of objects
-      if event[:name] == 'Ticket::Article'
-        article = Ticket::Article.lookup(id: event[:id])
-
-        # next if article is already deleted
-        next if !article
-
-        ticket = article.ticket
-        if !list_objects[ticket.id]
-          list_objects[ticket.id] = {}
-        end
-        list_objects[ticket.id][:article_id] = article.id
-        list_objects[ticket.id][:ticket_id]  = ticket.id
-
-        if !list_objects[ticket.id][:type]
-          list_objects[ticket.id][:type] = 'update'
-        end
-
-      elsif event[:name] == 'Ticket'
-        ticket = Ticket.lookup(id: event[:id])
-
-        # next if ticket is already deleted
-        next if !ticket
-
-        if !list_objects[ticket.id]
-          list_objects[ticket.id] = {}
-        end
-        list_objects[ticket.id][:ticket_id] = ticket.id
-
-        if !list_objects[ticket.id][:type] || list_objects[ticket.id][:type] == 'update'
-          list_objects[ticket.id][:type] = event[:type]
-        end
-
-        # merge changes
-        if event[:changes]
-          if !list_objects[ticket.id][:changes]
-            list_objects[ticket.id][:changes] = event[:changes]
-          else
-            event[:changes].each {|key, value|
-              if !list_objects[ticket.id][:changes][key]
-                list_objects[ticket.id][:changes][key] = value
-              else
-                list_objects[ticket.id][:changes][key][1] = value[1]
-              end
-            }
-          end
-        end
-      else
-        raise "unknown object for notification #{event[:name]}"
-      end
-    }
-    list_objects
-  end
-
-  def after_create(record)
-
-    # return if we run import mode
-    return if Setting.get('import_mode')
-
-    # Rails.logger.info 'CREATED!!!!'
-    # Rails.logger.info record.inspect
-    e = {
-      name: record.class.name,
-      type: 'create',
-      data: record,
-      id: record.id,
-    }
-    EventBuffer.add('notification', e)
-  end
-
-  def before_update(record)
-
-    # return if we run import mode
-    return if Setting.get('import_mode')
-
-    # ignore updates on articles / we just want send notifications on ticket updates
-    return if record.class.name == 'Ticket::Article'
-
-    # ignore certain attributes
-    real_changes = {}
-    record.changes.each {|key, value|
-      next if key == 'updated_at'
-      next if key == 'first_response'
-      next if key == 'close_time'
-      next if key == 'last_contact_agent'
-      next if key == 'last_contact_customer'
-      next if key == 'last_contact'
-      next if key == 'article_count'
-      next if key == 'create_article_type_id'
-      next if key == 'create_article_sender_id'
-      real_changes[key] = value
-    }
-
-    # do not send anything if nothing has changed
-    return if real_changes.empty?
-
-    e = {
-      name: record.class.name,
-      type: 'update',
-      data: record,
-      changes: real_changes,
-      id: record.id,
-    }
-    EventBuffer.add('notification', e)
-  end
-
-end
diff --git a/app/models/observer/transaction.rb b/app/models/observer/transaction.rb
index c3a813c68..5644a23c8 100644
--- a/app/models/observer/transaction.rb
+++ b/app/models/observer/transaction.rb
@@ -1,10 +1,185 @@
-class Observer::Transaction
+# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
+
+class Observer::Transaction < ActiveRecord::Observer
+  observe :ticket, 'ticket::_article'
 
   def self.commit(params = {})
 
-    # execute ticket transactions
-    Observer::Ticket::Notification.transaction(params)
+    # add attribute if execution is via web
+    params[:via_web] = false
+    if ENV['RACK_ENV'] || Rails.configuration.webserver_is_active
+      params[:via_web] = true
+    end
 
+    # execute object transactions
+    Observer::Transaction.perform(params)
+  end
+
+  def self.perform(params)
+
+    # return if we run import mode
+    return if Setting.get('import_mode')
+
+    # get buffer
+    list = EventBuffer.list('transaction')
+
+    # reset buffer
+    EventBuffer.reset('transaction')
+
+    # get uniq objects
+    list_objects = get_uniq_changes(list)
+    list_objects.each {|_id, item|
+
+      # send background job
+      Delayed::Job.enqueue(Transaction::BackgroundJob.new(item, params))
+    }
+  end
+
+=begin
+
+  result = get_uniq_changes(events)
+
+  result = {
+    1 => {
+      object: 'Ticket',
+      type: 'create',
+      ticket_id: 123,
+      article_id: 123,
+    },
+    9 => {
+      object: 'Ticket',
+      type: 'update',
+      ticket_id: 123,
+      changes: {
+        attribute1: [before, now],
+        attribute2: [before, now],
+      }
+    },
+  }
+
+  result = {
+    9 => {
+      object: 'Ticket',
+      type: 'update',
+      ticket_id: 123,
+      article_id: 123,
+      changes: {
+        attribute1: [before, now],
+        attribute2: [before, now],
+      }
+    },
+  }
+
+=end
+
+  def self.get_uniq_changes(events)
+    list_objects = {}
+    events.each { |event|
+
+      # get current state of objects
+      if event[:name] == 'Ticket::Article'
+        article = Ticket::Article.lookup(id: event[:id])
+
+        # next if article is already deleted
+        next if !article
+
+        ticket = article.ticket
+        if !list_objects[ticket.id]
+          list_objects[ticket.id] = {}
+        end
+        list_objects[ticket.id][:object] = 'Ticket'
+        list_objects[ticket.id][:article_id] = article.id
+        list_objects[ticket.id][:ticket_id]  = ticket.id
+
+        if !list_objects[ticket.id][:type]
+          list_objects[ticket.id][:type] = 'update'
+        end
+
+      elsif event[:name] == 'Ticket'
+        ticket = Ticket.lookup(id: event[:id])
+
+        # next if ticket is already deleted
+        next if !ticket
+
+        if !list_objects[ticket.id]
+          list_objects[ticket.id] = {}
+        end
+        list_objects[ticket.id][:object] = 'Ticket'
+        list_objects[ticket.id][:ticket_id] = ticket.id
+
+        if !list_objects[ticket.id][:type] || list_objects[ticket.id][:type] == 'update'
+          list_objects[ticket.id][:type] = event[:type]
+        end
+
+        # merge changes
+        if event[:changes]
+          if !list_objects[ticket.id][:changes]
+            list_objects[ticket.id][:changes] = event[:changes]
+          else
+            event[:changes].each {|key, value|
+              if !list_objects[ticket.id][:changes][key]
+                list_objects[ticket.id][:changes][key] = value
+              else
+                list_objects[ticket.id][:changes][key][1] = value[1]
+              end
+            }
+          end
+        end
+      else
+        raise "unknown object for integration #{event[:name]}"
+      end
+    }
+    list_objects
+  end
+
+  def after_create(record)
+
+    # return if we run import mode
+    return if Setting.get('import_mode')
+
+    e = {
+      name: record.class.name,
+      type: 'create',
+      data: record,
+      id: record.id,
+    }
+    EventBuffer.add('transaction', e)
+  end
+
+  def before_update(record)
+
+    # return if we run import mode
+    return if Setting.get('import_mode')
+
+    # ignore updates on articles / we just want send integrations on ticket updates
+    return if record.class.name == 'Ticket::Article'
+
+    # ignore certain attributes
+    real_changes = {}
+    record.changes.each {|key, value|
+      next if key == 'updated_at'
+      next if key == 'first_response'
+      next if key == 'close_time'
+      next if key == 'last_contact_agent'
+      next if key == 'last_contact_customer'
+      next if key == 'last_contact'
+      next if key == 'article_count'
+      next if key == 'create_article_type_id'
+      next if key == 'create_article_sender_id'
+      real_changes[key] = value
+    }
+
+    # do not send anything if nothing has changed
+    return if real_changes.empty?
+
+    e = {
+      name: record.class.name,
+      type: 'update',
+      data: record,
+      changes: real_changes,
+      id: record.id,
+    }
+    EventBuffer.add('transaction', e)
   end
 
 end
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 830be69b5..05530bdf8 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -180,12 +180,12 @@ returns
       tickets.each { |ticket|
 
         # send notification
-        bg = Observer::Ticket::Notification::BackgroundJob.new(
+        Transaction::BackgroundJob.run(
+          object: 'Ticket',
+          type: 'reminder_reached',
           ticket_id: ticket.id,
           article_id: ticket.articles.last.id,
-          type: 'reminder_reached',
         )
-        bg.perform
 
         result.push ticket
       }
@@ -220,23 +220,23 @@ returns
 
       # send escalation
       if ticket.escalation_time < Time.zone.now
-        bg = Observer::Ticket::Notification::BackgroundJob.new(
+        Transaction::BackgroundJob.run(
+          object: 'Ticket',
+          type: 'escalation',
           ticket_id: ticket.id,
           article_id: ticket.articles.last.id,
-          type: 'escalation',
         )
-        bg.perform
         result.push ticket
         next
       end
 
       # check if warning need to be sent
-      bg = Observer::Ticket::Notification::BackgroundJob.new(
+      Transaction::BackgroundJob.run(
+        object: 'Ticket',
+        type: 'escalation_warning',
         ticket_id: ticket.id,
         article_id: ticket.articles.last.id,
-        type: 'escalation_warning',
       )
-      bg.perform
       result.push ticket
     }
     result
diff --git a/app/models/transaction.rb b/app/models/transaction.rb
new file mode 100644
index 000000000..9dc9b0b8b
--- /dev/null
+++ b/app/models/transaction.rb
@@ -0,0 +1,3 @@
+class Transaction
+
+end
diff --git a/app/models/transaction/background_job.rb b/app/models/transaction/background_job.rb
new file mode 100644
index 000000000..263a269a3
--- /dev/null
+++ b/app/models/transaction/background_job.rb
@@ -0,0 +1,36 @@
+# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
+
+class Transaction::BackgroundJob
+  def initialize(item, params = {})
+
+=begin
+  {
+    object: 'Ticket',
+    type: 'update',
+    ticket_id: 123,
+    via_web: true,
+    changes: {
+      'attribute1' => [before,now],
+      'attribute2' => [before,now],
+    }
+  },
+=end
+
+    @item = item
+    @params = params
+  end
+
+  def perform
+    Setting.where(area: 'Transaction::Backend').order(:name).each {|setting|
+      backend = Setting.get(setting.name)
+      integration = Kernel.const_get(backend).new(@item, @params)
+      integration.perform
+    }
+  end
+
+  def self.run(item, params = {})
+    generic = new(item, params)
+    generic.perform
+  end
+
+end
diff --git a/app/models/observer/ticket/notification/background_job.rb b/app/models/transaction/notification.rb
similarity index 82%
rename from app/models/observer/ticket/notification/background_job.rb
rename to app/models/transaction/notification.rb
index 72b0e197c..1d2780faa 100644
--- a/app/models/observer/ticket/notification/background_job.rb
+++ b/app/models/transaction/notification.rb
@@ -1,24 +1,29 @@
-# encoding: utf-8
+# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
 
-class Observer::Ticket::Notification::BackgroundJob
-  def initialize(params, via_web = false)
+class Transaction::Notification
 
 =begin
+  {
+    object: 'Ticket',
     type: 'update',
     ticket_id: 123,
+    via_web: true,
     changes: {
-      'attribute1' => [before,now],
-      'attribute2' => [before,now],
+      'attribute1' => [before, now],
+      'attribute2' => [before, now],
     }
+  },
 =end
-    @p = params
-    @via_web = via_web
+
+  def initialize(item, params = {})
+    @item = item
+    @params = params
   end
 
   def perform
-    ticket = Ticket.find(@p[:ticket_id])
-    if @p[:article_id]
-      article = Ticket::Article.find(@p[:article_id])
+    ticket = Ticket.find(@item[:ticket_id])
+    if @item[:article_id]
+      article = Ticket::Article.find(@item[:article_id])
     end
 
     # find recipients
@@ -59,7 +64,7 @@ class Observer::Ticket::Notification::BackgroundJob
     end
     already_checked_recipient_ids = {}
     possible_recipients.each {|user|
-      result = NotificationFactory::Mailer.notification_settings(user, ticket, @p[:type])
+      result = NotificationFactory::Mailer.notification_settings(user, ticket, @item[:type])
       next if !result
       next if already_checked_recipient_ids[result[:user].id]
       already_checked_recipient_ids[result[:user].id] = true
@@ -73,7 +78,7 @@ class Observer::Ticket::Notification::BackgroundJob
       channels = item[:channels]
 
       # ignore user who changed it by him self via web
-      if @via_web
+      if @params[:via_web]
         next if article && article.updated_by_id == user.id
         next if !article && ticket.updated_by_id == user.id
       end
@@ -83,10 +88,10 @@ class Observer::Ticket::Notification::BackgroundJob
 
       # ignore if no changes has been done
       changes = human_changes(user, ticket)
-      next if @p[:type] == 'update' && !article && (!changes || changes.empty?)
+      next if @item[:type] == 'update' && !article && (!changes || changes.empty?)
 
       # check if today already notified
-      if @p[:type] == 'reminder_reached' || @p[:type] == 'escalation' || @p[:type] == 'escalation_warning'
+      if @item[:type] == 'reminder_reached' || @item[:type] == 'escalation' || @item[:type] == 'escalation_warning'
         identifier = user.email
         if !identifier || identifier == ''
           identifier = user.login
@@ -94,7 +99,7 @@ class Observer::Ticket::Notification::BackgroundJob
         already_notified = false
         History.list('Ticket', ticket.id).each {|history|
           next if history['type'] != 'notification'
-          next if history['value_to'] !~ /\(#{Regexp.escape(@p[:type])}:/
+          next if history['value_to'] !~ /\(#{Regexp.escape(@item[:type])}:/
           next if history['value_to'] !~ /#{Regexp.escape(identifier)}\(/
           next if !history['created_at'].today?
           already_notified = true
@@ -110,59 +115,59 @@ class Observer::Ticket::Notification::BackgroundJob
         created_by_id = ticket.updated_by_id || 1
 
         # delete old notifications
-        if @p[:type] == 'reminder_reached'
+        if @item[:type] == 'reminder_reached'
           seen = false
           created_by_id = 1
-          OnlineNotification.remove_by_type('Ticket', ticket.id, @p[:type], user)
+          OnlineNotification.remove_by_type('Ticket', ticket.id, @item[:type], user)
 
-        elsif @p[:type] == 'escalation' || @p[:type] == 'escalation_warning'
+        elsif @item[:type] == 'escalation' || @item[:type] == 'escalation_warning'
           seen = false
           created_by_id = 1
           OnlineNotification.remove_by_type('Ticket', ticket.id, 'escalation', user)
           OnlineNotification.remove_by_type('Ticket', ticket.id, 'escalation_warning', user)
 
         # on updates without state changes create unseen messages
-        elsif @p[:type] != 'create' && (!@p[:changes] || @p[:changes].empty? || !@p[:changes]['state_id'])
+        elsif @item[:type] != 'create' && (!@item[:changes] || @item[:changes].empty? || !@item[:changes]['state_id'])
           seen = false
         else
           seen = ticket.online_notification_seen_state(user.id)
         end
 
         OnlineNotification.add(
-          type: @p[:type],
+          type: @item[:type],
           object: 'Ticket',
           o_id: ticket.id,
           seen: seen,
           created_by_id: created_by_id,
           user_id: user.id,
         )
-        Rails.logger.debug "sent ticket online notifiaction to agent (#{@p[:type]}/#{ticket.id}/#{user.email})"
+        Rails.logger.debug "sent ticket online notifiaction to agent (#{@item[:type]}/#{ticket.id}/#{user.email})"
       end
 
       # ignore email channel notificaiton and empty emails
       if !channels['email'] || !user.email || user.email == ''
-        add_recipient_list(ticket, user, used_channels, @p[:type])
+        add_recipient_list(ticket, user, used_channels, @item[:type])
         next
       end
 
       used_channels.push 'email'
-      add_recipient_list(ticket, user, used_channels, @p[:type])
+      add_recipient_list(ticket, user, used_channels, @item[:type])
 
       # get user based notification template
       # if create, send create message / block update messages
       template = nil
-      if @p[:type] == 'create'
+      if @item[:type] == 'create'
         template = 'ticket_create'
-      elsif @p[:type] == 'update'
+      elsif @item[:type] == 'update'
         template = 'ticket_update'
-      elsif @p[:type] == 'reminder_reached'
+      elsif @item[:type] == 'reminder_reached'
         template = 'ticket_reminder_reached'
-      elsif @p[:type] == 'escalation'
+      elsif @item[:type] == 'escalation'
         template = 'ticket_escalation'
-      elsif @p[:type] == 'escalation_warning'
+      elsif @item[:type] == 'escalation_warning'
         template = 'ticket_escalation_warning'
       else
-        raise "unknown type for notification #{@p[:type]}"
+        raise "unknown type for notification #{@item[:type]}"
       end
 
       NotificationFactory::Mailer.notification(
@@ -177,7 +182,7 @@ class Observer::Ticket::Notification::BackgroundJob
         references: ticket.get_references,
         main_object: ticket,
       )
-      Rails.logger.debug "sent ticket email notifiaction to agent (#{@p[:type]}/#{ticket.id}/#{user.email})"
+      Rails.logger.debug "sent ticket email notifiaction to agent (#{@item[:type]}/#{ticket.id}/#{user.email})"
     end
 
   end
@@ -200,14 +205,14 @@ class Observer::Ticket::Notification::BackgroundJob
 
   def human_changes(user, record)
 
-    return {} if !@p[:changes]
+    return {} if !@item[:changes]
     locale = user.preferences[:locale] || 'en-us'
 
     # only show allowed attributes
     attribute_list = ObjectManager::Attribute.by_object_as_hash('Ticket', user)
     #puts "AL #{attribute_list.inspect}"
     user_related_changes = {}
-    @p[:changes].each {|key, value|
+    @item[:changes].each {|key, value|
 
       # if no config exists, use all attributes
       if !attribute_list || attribute_list.empty?
diff --git a/app/models/transaction/slack.rb b/app/models/transaction/slack.rb
new file mode 100644
index 000000000..2499f7a18
--- /dev/null
+++ b/app/models/transaction/slack.rb
@@ -0,0 +1,227 @@
+# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
+
+class Transaction::Slack
+=begin
+  {
+    object: 'Ticket',
+    type: 'update',
+    ticket_id: 123,
+    via_web: true,
+    changes: {
+      'attribute1' => [before, now],
+      'attribute2' => [before, now],
+    }
+  },
+=end
+  def initialize(item, params = {})
+    @item = item
+    @params = params
+  end
+
+  def perform
+    return if @item[:object] != 'Ticket'
+    return if !Setting.get('slack_integration')
+    logo_url = "#{Setting.get('http_type')}://#{Setting.get('fqdn')}/assets/images/#{Setting.get('product_logo')}"
+
+    config = Setting.get('slack_config')
+    return if !config
+    return if !config['items']
+
+    ticket = Ticket.find(@item[:ticket_id])
+    if @item[:article_id]
+      article = Ticket::Article.find(@item[:article_id])
+    end
+
+    # ignore if no changes has been done
+    changes = human_changes(ticket)
+    return if @item[:type] == 'update' && !article && (!changes || changes.empty?)
+
+    # get user based notification template
+    # if create, send create message / block update messages
+    template = nil
+    if @item[:type] == 'create'
+      template = 'ticket_create'
+    elsif @item[:type] == 'update'
+      template = 'ticket_update'
+    elsif @item[:type] == 'reminder_reached'
+      template = 'ticket_reminder_reached'
+    elsif @item[:type] == 'escalation'
+      template = 'ticket_escalation'
+    elsif @item[:type] == 'escalation_warning'
+      template = 'ticket_escalation_warning'
+    else
+      raise "unknown type for notification #{@item[:type]}"
+    end
+
+    user = User.find(1)
+    result = NotificationFactory::Slack.template(
+      template: template,
+      locale: user[:preferences][:locale],
+      objects: {
+        ticket: ticket,
+        article: article,
+        changes: changes,
+      },
+    )
+
+    # good, warning, danger
+    color = '#000000'
+    ticket_state_type = ticket.state.state_type.name
+    if ticket.escalation_time && ticket.escalation_time > Time.zone.now
+      color = '#f35912'
+    elsif ticket_state_type == 'pending reminder'
+      if ticket.pending_time && ticket.pending_time < Time.zone.now
+        color = '#faab00'
+      end
+    elsif ticket_state_type =~ /^(new|open)$/
+      color = '#faab00'
+    elsif ticket_state_type == 'closed'
+      color = '#38ad69'
+    end
+
+    config['items'].each {|item|
+
+      # check action
+      if item['types']
+        hit = false
+        item['types'].each {|type|
+          next if type.to_s != @item[:type].to_s
+          hit = true
+          break
+        }
+        next if !hit
+      end
+
+      # check group
+      if item['group_ids']
+        hit = false
+        item['group_ids'].each {|group_id|
+          next if group_id.to_s != ticket.group_id.to_s
+          hit = true
+          break
+        }
+        next if !hit
+      end
+
+      Rails.logger.debug "sent webhook (#{@item[:type]}/#{ticket.id}/#{item['webhook']})"
+      notifier = Slack::Notifier.new(
+        item['webhook'],
+        channel: item['channel'],
+        username: item['username'],
+        icon_url: logo_url,
+        mrkdwn: true,
+      )
+      if item['expand']
+        body = "#{result[:subject]}\n#{result[:body]}"
+        result = notifier.ping body
+      else
+        attachment = {
+          text: result[:body],
+          mrkdwn_in: ['text'],
+          color: color,
+        }
+        result = notifier.ping result[:subject],
+                               attachments: [attachment]
+      end
+      if !result
+        Rails.logger.error "Unable to post webhook: #{item['webhook']}"
+      end
+      if result.code.to_s != '200' && result.code.to_s != '201'
+        Rails.logger.error "Unable to post webhook: #{item['webhook']}: #{result.inspect}"
+      end
+      Rails.logger.debug "sent webhook (#{@item[:type]}/#{ticket.id}/#{item['webhook']})"
+    }
+
+  end
+
+  def human_changes(record)
+
+    return {} if !@item[:changes]
+    user = User.find(1)
+    locale = user.preferences[:locale] || 'en-us'
+
+    # only show allowed attributes
+    attribute_list = ObjectManager::Attribute.by_object_as_hash('Ticket', user)
+    #puts "AL #{attribute_list.inspect}"
+    user_related_changes = {}
+    @item[:changes].each {|key, value|
+
+      # if no config exists, use all attributes
+      if !attribute_list || attribute_list.empty?
+        user_related_changes[key] = value
+
+      # if config exists, just use existing attributes for user
+      elsif attribute_list[key.to_s]
+        user_related_changes[key] = value
+      end
+    }
+
+    changes = {}
+    user_related_changes.each {|key, value|
+
+      # get attribute name
+      attribute_name           = key.to_s
+      object_manager_attribute = attribute_list[attribute_name]
+      if attribute_name[-3, 3] == '_id'
+        attribute_name = attribute_name[ 0, attribute_name.length - 3 ].to_s
+      end
+
+      # add item to changes hash
+      if key.to_s == attribute_name
+        changes[attribute_name] = value
+      end
+
+      # if changed item is an _id field/reference, do an lookup for the realy values
+      value_id  = []
+      value_str = [ value[0], value[1] ]
+      if key.to_s[-3, 3] == '_id'
+        value_id[0] = value[0]
+        value_id[1] = value[1]
+
+        if record.respond_to?(attribute_name) && record.send(attribute_name)
+          relation_class = record.send(attribute_name).class
+          if relation_class && value_id[0]
+            relation_model = relation_class.lookup(id: value_id[0])
+            if relation_model
+              if relation_model['name']
+                value_str[0] = relation_model['name']
+              elsif relation_model.respond_to?('fullname')
+                value_str[0] = relation_model.send('fullname')
+              end
+            end
+          end
+          if relation_class && value_id[1]
+            relation_model = relation_class.lookup(id: value_id[1])
+            if relation_model
+              if relation_model['name']
+                value_str[1] = relation_model['name']
+              elsif relation_model.respond_to?('fullname')
+                value_str[1] = relation_model.send('fullname')
+              end
+            end
+          end
+        end
+      end
+
+      # check if we have an dedcated display name for it
+      display = attribute_name
+      if object_manager_attribute && object_manager_attribute[:display]
+
+        # delete old key
+        changes.delete(display)
+
+        # set new key
+        display = object_manager_attribute[:display].to_s
+      end
+      changes[display] = if object_manager_attribute && object_manager_attribute[:translate]
+                           from = Translation.translate(locale, value_str[0])
+                           to = Translation.translate(locale, value_str[1])
+                           [from, to]
+                         else
+                           [value_str[0].to_s, value_str[1].to_s]
+                         end
+    }
+    changes
+  end
+
+end
diff --git a/app/views/mailer/ticket_create/de.html.erb b/app/views/mailer/ticket_create/de.html.erb
index d79f442b5..8806b0875 100644
--- a/app/views/mailer/ticket_create/de.html.erb
+++ b/app/views/mailer/ticket_create/de.html.erb
@@ -14,7 +14,7 @@ Neues Ticket (<%= d 'ticket.title' %>)
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_create/en.html.erb b/app/views/mailer/ticket_create/en.html.erb
index 06cb4bb28..7a71d711d 100644
--- a/app/views/mailer/ticket_create/en.html.erb
+++ b/app/views/mailer/ticket_create/en.html.erb
@@ -14,7 +14,7 @@ New Ticket (<%= d 'ticket.title' %>)
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_escalation/de.html.erb b/app/views/mailer/ticket_escalation/de.html.erb
index 1b33dcddf..c32ac9300 100644
--- a/app/views/mailer/ticket_escalation/de.html.erb
+++ b/app/views/mailer/ticket_escalation/de.html.erb
@@ -8,7 +8,7 @@ Ticket ist eskaliert (<%= d 'ticket.title' %>)
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_escalation/en.html.erb b/app/views/mailer/ticket_escalation/en.html.erb
index 017472a7e..4bda1e9c2 100644
--- a/app/views/mailer/ticket_escalation/en.html.erb
+++ b/app/views/mailer/ticket_escalation/en.html.erb
@@ -8,7 +8,7 @@ Ticket is escalated (<%= d 'ticket.title' %>)
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_escalation_warning/de.html.erb b/app/views/mailer/ticket_escalation_warning/de.html.erb
index 4ee2e9671..b257a2142 100644
--- a/app/views/mailer/ticket_escalation_warning/de.html.erb
+++ b/app/views/mailer/ticket_escalation_warning/de.html.erb
@@ -8,7 +8,7 @@ Ticket wird eskalieren (<%= d 'ticket.title' %>)
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_escalation_warning/en.html.erb b/app/views/mailer/ticket_escalation_warning/en.html.erb
index d376e0c20..341663a1b 100644
--- a/app/views/mailer/ticket_escalation_warning/en.html.erb
+++ b/app/views/mailer/ticket_escalation_warning/en.html.erb
@@ -1,14 +1,14 @@
-Ticket will escalated (<%= d 'ticket.title' %>)
+Ticket will escalate (<%= d 'ticket.title' %>)
 
 <p>Hi <%= d 'recipient.firstname' %>,</p>
 <br>
-<p>a ticket (<%= d 'ticket.title' %>) from "<b><%= d 'ticket.customer.longname' %></b>" will escalate at "<%= d 'ticket.escalation_time' %>"!</p>
+<p>A ticket (<%= d 'ticket.title' %>) from "<b><%= d 'ticket.customer.longname' %></b>" will escalate at "<%= d 'ticket.escalation_time' %>"!</p>
 <br>
 <% if @objects[:article] %>
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_reminder_reached/de.html.erb b/app/views/mailer/ticket_reminder_reached/de.html.erb
index 5e0c98911..e919e7dfa 100644
--- a/app/views/mailer/ticket_reminder_reached/de.html.erb
+++ b/app/views/mailer/ticket_reminder_reached/de.html.erb
@@ -8,7 +8,7 @@ Warten auf Erinnerung erreicht! (<%= d 'ticket.title' %>)
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_reminder_reached/en.html.erb b/app/views/mailer/ticket_reminder_reached/en.html.erb
index 91830d753..255614252 100644
--- a/app/views/mailer/ticket_reminder_reached/en.html.erb
+++ b/app/views/mailer/ticket_reminder_reached/en.html.erb
@@ -2,13 +2,13 @@ Reminder reached (<%= d 'ticket.title' %>)
 
 <p>Hi <%= d 'recipient.firstname' %>,</p>
 <br>
-<p>Ticket needs attention, reminder reached for ticket (<%= d 'ticket.title' %>) with customer "<b><%= d 'ticket.customer.longname' %></b>".</p>
+<p>A ticket needs attention, reminder reached for (<%= d 'ticket.title' %>) with customer "<b><%= d 'ticket.customer.longname' %></b>".</p>
 <br>
 <% if @objects[:article] %>
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_update/de.html.erb b/app/views/mailer/ticket_update/de.html.erb
index 8f47080e3..576be3f21 100644
--- a/app/views/mailer/ticket_update/de.html.erb
+++ b/app/views/mailer/ticket_update/de.html.erb
@@ -19,7 +19,7 @@ Ticket (<%= d 'ticket.title' %>) wurde von "<b><%= d 'ticket.updated_by.longname
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/mailer/ticket_update/en.html.erb b/app/views/mailer/ticket_update/en.html.erb
index 000701a03..df29d9ac0 100644
--- a/app/views/mailer/ticket_update/en.html.erb
+++ b/app/views/mailer/ticket_update/en.html.erb
@@ -19,7 +19,7 @@ Ticket (<%= d 'ticket.title' %>) has been updated by "<b><%= d 'ticket.updated_b
   <p>
   <%= t 'Information' %>:
   <blockquote type="cite">
-  <%= a 'article' %>
+  <%= a_html 'article' %>
   </blockquote>
   </p>
 <% end %>
diff --git a/app/views/slack/application.md.erb b/app/views/slack/application.md.erb
new file mode 100644
index 000000000..3fec9ad1d
--- /dev/null
+++ b/app/views/slack/application.md.erb
@@ -0,0 +1 @@
+<%= d 'message', false %>
\ No newline at end of file
diff --git a/app/views/slack/ticket_create/en.md.erb b/app/views/slack/ticket_create/en.md.erb
new file mode 100644
index 000000000..594fac928
--- /dev/null
+++ b/app/views/slack/ticket_create/en.md.erb
@@ -0,0 +1,9 @@
+# <%= d 'ticket.title' %>
+_<<%= c 'http_type' %>://<%= c 'fqdn' %>/#ticket/zoom/<%= d 'ticket.id' %>|Ticket#<%= d 'ticket.number' %>>: Created by <%= d 'ticket.updated_by.longname' %> at <%= d 'ticket.updated_at' %>_
+* <%= t 'Group' %>: <%= d 'ticket.group.name' %>
+* <%= t 'Owner' %>: <%= d 'ticket.owner.fullname' %>
+* <%= t 'State' %>: <%= t d 'ticket.state.name' %>
+
+<% if @objects[:article] %>
+<%= a_text 'article' %>
+<% end %>
diff --git a/app/views/slack/ticket_escalation/en.md.erb b/app/views/slack/ticket_escalation/en.md.erb
new file mode 100644
index 000000000..330998489
--- /dev/null
+++ b/app/views/slack/ticket_escalation/en.md.erb
@@ -0,0 +1,7 @@
+# <%= d 'ticket.title' %>
+_<<%= c 'http_type' %>://<%= c 'fqdn' %>/#ticket/zoom/<%= d 'ticket.id' %>|Ticket#<%= d 'ticket.number' %>>: Escalated at <%= d 'ticket.escalation_time' %>_
+A ticket (<%= d 'ticket.title' %>) from "<b><%= d 'ticket.customer.longname' %></b>" is escalated since "<%= d 'ticket.escalation_time' %>"!
+
+<% if @objects[:article] %>
+<%= a_text 'article' %>
+<% end %>
diff --git a/app/views/slack/ticket_escalation_warning/en.md.erb b/app/views/slack/ticket_escalation_warning/en.md.erb
new file mode 100644
index 000000000..15f48c0a3
--- /dev/null
+++ b/app/views/slack/ticket_escalation_warning/en.md.erb
@@ -0,0 +1,7 @@
+# <%= d 'ticket.title' %>
+_<<%= c 'http_type' %>://<%= c 'fqdn' %>/#ticket/zoom/<%= d 'ticket.id' %>|Ticket#<%= d 'ticket.number' %>>: Will escalate at <%= d 'ticket.escalation_time' %>_
+A ticket (<%= d 'ticket.title' %>) from "<b><%= d 'ticket.customer.longname' %></b>" will escalate at "<%= d 'ticket.escalation_time' %>"!
+
+<% if @objects[:article] %>
+<%= a_text 'article' %>
+<% end %>
diff --git a/app/views/slack/ticket_reminder_reached/en.md.erb b/app/views/slack/ticket_reminder_reached/en.md.erb
new file mode 100644
index 000000000..8ae47fc71
--- /dev/null
+++ b/app/views/slack/ticket_reminder_reached/en.md.erb
@@ -0,0 +1,7 @@
+# <%= d 'ticket.title' %>
+_<<%= c 'http_type' %>://<%= c 'fqdn' %>/#ticket/zoom/<%= d 'ticket.id' %>|Ticket#<%= d 'ticket.number' %>>: Reminder reached!_
+A ticket needs attention, reminder reached for (<%= d 'ticket.title' %>) with customer "*<%= d 'ticket.customer.longname' %>*".
+
+<% if @objects[:article] %>
+<%= a_text 'article' %>
+<% end %>
diff --git a/app/views/slack/ticket_update/en.md.erb b/app/views/slack/ticket_update/en.md.erb
new file mode 100644
index 000000000..e391ad115
--- /dev/null
+++ b/app/views/slack/ticket_update/en.md.erb
@@ -0,0 +1,11 @@
+# <%= d 'ticket.title' %>
+_<<%= c 'http_type' %>://<%= c 'fqdn' %>/#ticket/zoom/<%= d 'ticket.id' %>|Ticket#<%= d 'ticket.number' %>>: Updated by <%= d 'ticket.updated_by.longname' %> at <%= d 'ticket.updated_at' %>_
+<% if @objects[:changes] && !@objects[:changes].empty? %>
+  <% @objects[:changes].each do |key, value| %>
+  * <%= t key %>: <%= h value[0] %> -> <%= h value[1] %>
+  <% end %>
+<% end %>
+
+<% if @objects[:article] %>
+<%= a_text 'article' %>
+<% end %>
diff --git a/config/application.rb b/config/application.rb
index 59a17ebcf..4228be027 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -31,7 +31,6 @@ module Zammad
       'observer::_ticket::_article::_communicate_facebook',
       'observer::_ticket::_article::_communicate_twitter',
       'observer::_ticket::_article::_signature_detection',
-      'observer::_ticket::_notification',
       'observer::_ticket::_reset_new_state',
       'observer::_ticket::_escalation_calculation',
       'observer::_ticket::_ref_object_touch',
@@ -42,7 +41,8 @@ module Zammad
       'observer::_user::_ticket_organization',
       'observer::_user::_geo',
       'observer::_organization::_ref_object_touch',
-      'observer::_sla::_ticket_rebuild_escalation'
+      'observer::_sla::_ticket_rebuild_escalation',
+      'observer::_transaction'
 
     # REST api path
     config.api_path = '/api/v1'
diff --git a/db/migrate/20160415000001_add_slack_integration.rb b/db/migrate/20160415000001_add_slack_integration.rb
new file mode 100644
index 000000000..c9fefc581
--- /dev/null
+++ b/db/migrate/20160415000001_add_slack_integration.rb
@@ -0,0 +1,144 @@
+class AddSlackIntegration < ActiveRecord::Migration
+  def up
+    Setting.create_or_update(
+      title: 'Icinga integration',
+      name: 'icinga_integration',
+      area: 'Integration::Switch',
+      description: 'Define if Icinga (http://www.icinga.org) is enabled or not.',
+      options: {
+        form: [
+          {
+            display: '',
+            null: true,
+            name: 'icinga_integration',
+            tag: 'boolean',
+            options: {
+              true  => 'yes',
+              false => 'no',
+            },
+          },
+        ],
+      },
+      state: false,
+      preferences: { prio: 1 },
+      frontend: false
+    )
+    Setting.create_or_update(
+      title: 'Sender',
+      name: 'icinga_sender',
+      area: 'Integration::Icinga',
+      description: 'Define the sender email address of Icinga emails.',
+      options: {
+        form: [
+          {
+            display: '',
+            null: false,
+            name: 'icinga_sender',
+            tag: 'input',
+            placeholder: 'icinga@monitoring.example.com',
+          },
+        ],
+      },
+      state: 'icinga@monitoring.example.com',
+      frontend: false,
+      preferences: { prio: 2 },
+    )
+    Setting.create_or_update(
+      title: 'Nagios integration',
+      name: 'nagios_integration',
+      area: 'Integration::Switch',
+      description: 'Define if Nagios (http://www.nagios.org) is enabled or not.',
+      options: {
+        form: [
+          {
+            display: '',
+            null: true,
+            name: 'nagios_integration',
+            tag: 'boolean',
+            options: {
+              true  => 'yes',
+              false => 'no',
+            },
+          },
+        ],
+      },
+      state: false,
+      preferences: { prio: 1 },
+      frontend: false
+    )
+    Setting.create_or_update(
+      title: 'Sender',
+      name: 'nagios_sender',
+      area: 'Integration::Nagios',
+      description: 'Define the sender email address of Nagios emails.',
+      options: {
+        form: [
+          {
+            display: '',
+            null: false,
+            name: 'nagios_sender',
+            tag: 'input',
+            placeholder: 'nagios@monitoring.example.com',
+          },
+        ],
+      },
+      state: 'nagios@monitoring.example.com',
+      frontend: false,
+      preferences: { prio: 2 },
+    )
+
+    Setting.create_or_update(
+      title: 'Define transaction backend.',
+      name: '0100_notification',
+      area: 'Transaction::Backend',
+      description: 'Define the transaction backend to send agent notifications.',
+      options: {},
+      state: 'Transaction::Notification',
+      frontend: false
+    )
+    Setting.create_or_update(
+      title: 'Define transaction backend.',
+      name: '6000_slack_webhook',
+      area: 'Transaction::Backend',
+      description: 'Define the transaction backend which posts messages to (http://www.slack.com).',
+      options: {},
+      state: 'Transaction::Slack',
+      frontend: false
+    )
+    Setting.create_if_not_exists(
+      title: 'Slack integration',
+      name: 'slack_integration',
+      area: 'Integration::Slack',
+      description: 'Define if Slack (http://www.slack.org) is enabled or not.',
+      options: {
+        form: [
+          {
+            display: '',
+            null: true,
+            name: 'slack_integration',
+            tag: 'boolean',
+            options: {
+              true  => 'yes',
+              false => 'no',
+            },
+          },
+        ],
+      },
+      state: true,
+      preferences: { prio: 1 },
+      frontend: false
+    )
+    Setting.create_or_update(
+      title: 'Slack config',
+      name: 'slack_config',
+      area: 'Integration::Slack',
+      description: 'Define the slack config.',
+      options: {},
+      state: {
+        items: []
+      },
+      frontend: false,
+      preferences: { prio: 2 },
+    )
+  end
+end
diff --git a/db/seeds.rb b/db/seeds.rb
index 1d87da6a3..f13859168 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -1600,7 +1600,7 @@ Setting.create_if_not_exists(
 Setting.create_if_not_exists(
   title: 'Icinga integration',
   name: 'icinga_integration',
-  area: 'Integration::Icinga',
+  area: 'Integration::Switch',
   description: 'Define if Icinga (http://www.icinga.org) is enabled or not.',
   options: {
     form: [
@@ -1632,6 +1632,7 @@ Setting.create_if_not_exists(
         null: false,
         name: 'icinga_sender',
         tag: 'input',
+        placeholder: 'icinga@monitoring.example.com',
       },
     ],
   },
@@ -1685,7 +1686,7 @@ Setting.create_if_not_exists(
 Setting.create_if_not_exists(
   title: 'Nagios integration',
   name: 'nagios_integration',
-  area: 'Integration::Nagios',
+  area: 'Integration::Switch',
   description: 'Define if Nagios (http://www.nagios.org) is enabled or not.',
   options: {
     form: [
@@ -1717,6 +1718,7 @@ Setting.create_if_not_exists(
         null: false,
         name: 'nagios_sender',
         tag: 'input',
+        placeholder: 'nagios@monitoring.example.com',
       },
     ],
   },
@@ -1767,6 +1769,59 @@ Setting.create_if_not_exists(
   preferences: { prio: 4 },
   frontend: false
 )
+Setting.create_if_not_exists(
+  title: 'Define transaction backend.',
+  name: '0100_notification',
+  area: 'Transaction::Backend',
+  description: 'Define the transaction backend to send agent notifications.',
+  options: {},
+  state: 'Transaction::Notification',
+  frontend: false
+)
+Setting.create_if_not_exists(
+  title: 'Define transaction backend.',
+  name: '6000_slack_webhook',
+  area: 'Transaction::Backend',
+  description: 'Define the transaction backend which posts messages to (http://www.slack.com).',
+  options: {},
+  state: 'Transaction::Slack',
+  frontend: false
+)
+Setting.create_if_not_exists(
+  title: 'Slack integration',
+  name: 'slack_integration',
+  area: 'Integration::Switch',
+  description: 'Define if Slack (http://www.slack.org) is enabled or not.',
+  options: {
+    form: [
+      {
+        display: '',
+        null: true,
+        name: 'slack_integration',
+        tag: 'boolean',
+        options: {
+          true  => 'yes',
+          false => 'no',
+        },
+      },
+    ],
+  },
+  state: true,
+  preferences: { prio: 1 },
+  frontend: false
+)
+Setting.create_if_not_exists(
+  title: 'Slack config',
+  name: 'slack_config',
+  area: 'Integration::Slack',
+  description: 'Define the slack config.',
+  options: {},
+  state: {
+    items: []
+  },
+  frontend: false,
+  preferences: { prio: 2 },
+)
 
 signature = Signature.create_if_not_exists(
   id: 1,
diff --git a/lib/notification_factory.rb b/lib/notification_factory.rb
index 0311720f5..26de217e3 100644
--- a/lib/notification_factory.rb
+++ b/lib/notification_factory.rb
@@ -5,8 +5,17 @@ module NotificationFactory
   result = NotificationFactory.template_read(
     template: 'password_reset',
     locale: 'en-us',
-    format: 'html', # md
-    type: 'mailer', # slack
+    format: 'html',
+    type: 'mailer',
+  )
+
+or
+
+  result = NotificationFactory.template_read(
+    template: 'ticket_update',
+    locale: 'en-us',
+    format: 'md',
+    type: 'slack',
   )
 
 returns
@@ -56,8 +65,15 @@ returns
 =begin
 
   string = NotificationFactory.application_template_read(
-    format: 'html', # md
-    type: 'mailer', # slack
+    format: 'html',
+    type: 'mailer',
+  )
+
+or
+
+  string = NotificationFactory.application_template_read(
+    format: 'md',
+    type: 'slack',
   )
 
 returns
diff --git a/lib/notification_factory/slack.rb b/lib/notification_factory/slack.rb
new file mode 100644
index 000000000..895b2ff05
--- /dev/null
+++ b/lib/notification_factory/slack.rb
@@ -0,0 +1,54 @@
+class NotificationFactory::Slack
+
+=begin
+
+  result = NotificationFactory::Slack.template(
+    template: 'ticket_update',
+    locale: 'en-us',
+    objects:  {
+      recipient: User.find(2),
+      ticket: Ticket.find(1)
+    },
+  )
+
+returns
+
+  {
+    subject: 'some subject',
+    body: 'some body',
+  }
+
+=end
+
+  def self.template(data)
+
+    if data[:templateInline]
+      return NotificationFactory::Template.new(data[:objects], data[:locale], data[:templateInline]).render
+    end
+
+    template = NotificationFactory.template_read(
+      locale: data[:locale] || 'en',
+      template: data[:template],
+      format: 'md',
+      type: 'slack',
+    )
+
+    message_subject = NotificationFactory::Template.new(data[:objects], data[:locale], template[:subject]).render
+    message_body = NotificationFactory::Template.new(data[:objects], data[:locale], template[:body]).render
+
+    if !data[:raw]
+      application_template = NotificationFactory.application_template_read(
+        format: 'md',
+        type: 'slack',
+      )
+      data[:objects][:message] = message_body
+      data[:objects][:standalone] = data[:standalone]
+      message_body = NotificationFactory::Template.new(data[:objects], data[:locale], application_template).render
+    end
+    {
+      subject: message_subject.strip!,
+      body: message_body.strip!,
+    }
+  end
+
+end
diff --git a/lib/notification_factory/template.rb b/lib/notification_factory/template.rb
index e953d1e27..a0244a6ce 100644
--- a/lib/notification_factory/template.rb
+++ b/lib/notification_factory/template.rb
@@ -11,6 +11,8 @@ class NotificationFactory::Template
     ERB.new(@template).result(binding)
   end
 
+  # d - data of object
+  # d('user.firstname', htmlEscape)
   def d(key, escape = nil)
 
     # do validaton, ignore some methodes
@@ -45,19 +47,25 @@ class NotificationFactory::Template
     h placeholder
   end
 
+  # c - config
+  # c('fqdn', htmlEscape)
   def c(key, escape = nil)
     config = Setting.get(key)
     return config if escape == false || (escape.nil? && !@escape)
     h config
   end
 
+  # t - translation
+  # t('yes', htmlEscape)
   def t(key, escape = nil)
     translation = Translation.translate(@locale, key)
     return translation if escape == false || (escape.nil? && !@escape)
     h translation
   end
 
-  def a(article)
+  # a_html - article body in html
+  # a_html(article)
+  def a_html(article)
     content_type = d "#{article}.content_type", false
     if content_type =~ /html/
       return d "#{article}.body", false
@@ -65,6 +73,19 @@ class NotificationFactory::Template
     d("#{article}.body", false).text2html
   end
 
+  # a_text - article body in text
+  # a_text(article)
+  def a_text(article)
+    content_type = d "#{article}.content_type", false
+    body = d "#{article}.body", false
+    if content_type =~ /html/
+      body = body.html2text
+    end
+    (body.strip + "\n").gsub(/^(.*?)$/, '> \\1')
+  end
+
+  # h - htmlEscape
+  # h('fqdn', htmlEscape)
   def h(key)
     return key if !key
     CGI.escapeHTML(key.to_s)
diff --git a/test/integration/slack_test.rb b/test/integration/slack_test.rb
new file mode 100644
index 000000000..33320dfdb
--- /dev/null
+++ b/test/integration/slack_test.rb
@@ -0,0 +1,192 @@
+# encoding: utf-8
+require 'integration_test_helper'
+require 'slack'
+
+class SlackTest < ActiveSupport::TestCase
+
+  # needed to check correct behavior
+  slack_group = Group.create_if_not_exists(
+    name: 'Slack',
+    updated_by_id: 1,
+    created_by_id: 1
+  )
+
+  # check
+  test 'base' do
+
+    if !ENV['SLACK_CI_CHANNEL']
+      raise "ERROR: Need SLACK_CI_CHANNEL - hint SLACK_CI_CHANNEL='ci-zammad'"
+    end
+    if !ENV['SLACK_CI_WEBHOOK']
+      raise "ERROR: Need SLACK_CI_WEBHOOK - hint SLACK_CI_WEBHOOK='https://hooks.slack.com/services/...'"
+    end
+    if !ENV['SLACK_CI_CHECKER_TOKEN']
+      raise "ERROR: Need SLACK_CI_CHECKER_TOKEN - hint SLACK_CI_CHECKER_TOKEN='...'"
+    end
+
+    channel = ENV['SLACK_CI_CHANNEL']
+    webhook = ENV['SLACK_CI_WEBHOOK']
+
+    # set system mode to done / to activate
+    Setting.set('system_init_done', true)
+    Setting.set('slack_integration', true)
+
+    items = [
+      {
+        group_ids: [slack_group.id],
+        types: %w(create update),
+        webhook: webhook,
+        channel: channel,
+        username: 'zammad bot',
+        expand: false,
+      }
+    ]
+    Setting.set('slack_config', { items: items })
+
+    # case 1
+    customer = User.find(2)
+    hash     = hash_gen
+    text     = "#{rand_word}... #{hash}"
+
+    default_group = Group.first
+    ticket1 = Ticket.create(
+      title:         text,
+      customer_id:   customer.id,
+      group_id:      default_group.id,
+      state:         Ticket::State.find_by(name: 'new'),
+      priority:      Ticket::Priority.find_by(name: '2 normal'),
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+    article1 = Ticket::Article.create(
+      ticket_id:     ticket1.id,
+      body:          text,
+      type:          Ticket::Article::Type.find_by(name: 'note'),
+      sender:        Ticket::Article::Sender.find_by(name: 'Customer'),
+      internal:      false,
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+
+    Observer::Transaction.commit
+    Delayed::Worker.new.work_off
+
+    # check if message exists
+    assert_not(slack_check(channel, hash))
+
+    ticket1.state = Ticket::State.find_by(name: 'open')
+    ticket1.save
+
+    Observer::Transaction.commit
+    Delayed::Worker.new.work_off
+
+    # check if message exists
+    assert_not(slack_check(channel, hash))
+
+    # case 2
+    hash = hash_gen
+    text = "#{rand_word}... #{hash}"
+
+    ticket2 = Ticket.create(
+      title:         text,
+      customer_id:   customer.id,
+      group_id:      slack_group.id,
+      state:         Ticket::State.find_by(name: 'new'),
+      priority:      Ticket::Priority.find_by(name: '2 normal'),
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+    article2 = Ticket::Article.create(
+      ticket_id:     ticket2.id,
+      body:          text,
+      type:          Ticket::Article::Type.find_by(name: 'note'),
+      sender:        Ticket::Article::Sender.find_by(name: 'Customer'),
+      internal:      false,
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+
+    Observer::Transaction.commit
+    Delayed::Worker.new.work_off
+
+    # check if message exists
+    assert(slack_check(channel, hash))
+
+    hash = hash_gen
+    text = "#{rand_word}... #{hash}"
+
+    ticket2.title = text
+    ticket2.save
+
+    Observer::Transaction.commit
+    Delayed::Worker.new.work_off
+
+    # check if message exists
+    assert(slack_check(channel, hash))
+
+  end
+
+  def hash_gen
+    (0...10).map { ('a'..'z').to_a[rand(26)] }.join
+  end
+
+  def rand_word
+    words = [
+      'dog',
+      'cat',
+      'house',
+      'home',
+      'yesterday',
+      'tomorrow',
+      'new york',
+      'berlin',
+      'coffee script',
+      'java script',
+      'bob smith',
+      'be open',
+      'really nice',
+      'stay tuned',
+      'be a good boy',
+      'invent new things',
+    ]
+    words[rand(words.length)]
+  end
+
+  def slack_check(channel_name, search_for)
+
+    Slack.configure do |config|
+      config.token = ENV['SLACK_CI_CHECKER_TOKEN']
+    end
+
+    Slack.auth_test
+
+    client = Slack::Client.new
+    channels = client.channels_list['channels']
+    channel_id = nil
+    channels.each {|channel|
+      next if channel['name'] != channel_name
+      channel_id = channel['id']
+    }
+    if !channel_id
+      raise "ERROR: No such channel '#{channel_name}'"
+    end
+
+    channel_history = client.channels_history(channel: channel_id)
+    if !channel_history
+      raise "ERROR: No history for channel #{channel_name}/#{channel_id}"
+    end
+    if !channel_history['messages']
+      raise "ERROR: No history messages for channel #{channel_name}/#{channel_id}"
+    end
+    channel_history['messages'].each {|message|
+      next if !message['text']
+      if message['text'] =~ /#{search_for}/i
+        p "SUCCESS: message with #{search_for} found!"
+        return true
+      end
+    }
+    #raise "ERROR: No such message containing #{search_for} in history of channel #{channel_name}/#{channel_id}"
+    false
+  end
+
+end
diff --git a/test/unit/ticket_notification_test.rb b/test/unit/ticket_notification_test.rb
index b9cca9088..2193d50ab 100644
--- a/test/unit/ticket_notification_test.rb
+++ b/test/unit/ticket_notification_test.rb
@@ -864,8 +864,8 @@ class TicketNotificationTest < ActiveSupport::TestCase
     ticket1.priority = Ticket::Priority.lookup(name: '3 high')
     ticket1.save
 
-    list         = EventBuffer.list('notification')
-    list_objects = Observer::Ticket::Notification.get_uniq_changes(list)
+    list         = EventBuffer.list('transaction')
+    list_objects = Observer::Transaction.get_uniq_changes(list)
 
     assert_equal('some notification event test 1', list_objects[ticket1.id][:changes]['title'][0])
     assert_equal('some notification event test 1 - #2', list_objects[ticket1.id][:changes]['title'][1])
@@ -878,8 +878,8 @@ class TicketNotificationTest < ActiveSupport::TestCase
     ticket1.priority = Ticket::Priority.lookup(name: '1 low')
     ticket1.save
 
-    list         = EventBuffer.list('notification')
-    list_objects = Observer::Ticket::Notification.get_uniq_changes(list)
+    list         = EventBuffer.list('transaction')
+    list_objects = Observer::Transaction.get_uniq_changes(list)
 
     assert_equal('some notification event test 1', list_objects[ticket1.id][:changes]['title'][0])
     assert_equal('some notification event test 1 - #2 - #3', list_objects[ticket1.id][:changes]['title'][1])
@@ -916,7 +916,7 @@ class TicketNotificationTest < ActiveSupport::TestCase
     )
     assert(ticket1, 'ticket created - ticket notification template')
 
-    bg = Observer::Ticket::Notification::BackgroundJob.new(
+    bg = Transaction::Notification.new(
       ticket_id: ticket1.id,
       article_id: article.id,
       type: 'update',
@@ -992,7 +992,7 @@ class TicketNotificationTest < ActiveSupport::TestCase
     assert_no_match(/pending_till/, result[:body])
     assert_no_match(/i18n/, result[:body])
 
-    bg = Observer::Ticket::Notification::BackgroundJob.new(
+    bg = Transaction::Notification.new(
       ticket_id: ticket1.id,
       article_id: article.id,
       type: 'update',