diff --git a/lib/import/otrs/diff.rb b/lib/import/otrs/diff.rb
index 316457953..40104614b 100644
--- a/lib/import/otrs/diff.rb
+++ b/lib/import/otrs/diff.rb
@@ -9,6 +9,11 @@ module Import
         diff
       end
 
+      def diff?
+        return true if @diff
+        false
+      end
+
       private
 
       def diff_import_possible?
@@ -20,6 +25,8 @@ module Import
       def diff
         log 'Start diff...'
 
+        @diff = true
+
         check_import_mode
 
         updateable_objects
diff --git a/lib/import/otrs/priority_factory.rb b/lib/import/otrs/priority_factory.rb
index ebd405775..7122dfa8f 100644
--- a/lib/import/otrs/priority_factory.rb
+++ b/lib/import/otrs/priority_factory.rb
@@ -2,6 +2,32 @@ module Import
   module OTRS
     module PriorityFactory
       extend Import::Factory
+
+      # rubocop:disable Style/ModuleFunction
+      extend self
+
+      def import_loop(records, *_args, &import_block)
+        super
+        update_attribute_settings
+      end
+
+      def update_attribute_settings
+        return if Import::OTRS.diff?
+        update_attribute
+      end
+
+      def update_attribute
+        priority = ::Ticket::Priority.find_by(
+          name:   Import::OTRS::SysConfigFactory.postmaster_default_lookup(:priority_default_create),
+          active: true
+        )
+        return if !priority
+
+        priority.default_create = true
+        priority.callback_loop  = true
+
+        priority.save
+      end
     end
   end
 end
diff --git a/lib/import/otrs/state_factory.rb b/lib/import/otrs/state_factory.rb
index b19802ae9..b9dcb9eec 100644
--- a/lib/import/otrs/state_factory.rb
+++ b/lib/import/otrs/state_factory.rb
@@ -20,6 +20,48 @@ module Import
 
       def import_loop(records, *_args, &import_block)
         super
+        update_attribute_settings
+      end
+
+      def update_attribute_settings
+        return if Import::OTRS.diff?
+
+        update_attribute
+        update_ticket_attributes
+      end
+
+      def update_attribute
+        update_default_create
+        update_default_follow_up
+      end
+
+      def update_default_create
+        state = ::Ticket::State.find_by(
+          name:   Import::OTRS::SysConfigFactory.postmaster_default_lookup(:state_default_create),
+          active: true
+        )
+        return if !state
+
+        state.default_create = true
+        state.callback_loop  = true
+
+        state.save
+      end
+
+      def update_default_follow_up
+        state = ::Ticket::State.find_by(
+          name:   Import::OTRS::SysConfigFactory.postmaster_default_lookup(:state_default_follow_up),
+          active: true
+        )
+        return if !state
+
+        state.default_follow_up = true
+        state.callback_loop     = true
+
+        state.save
+      end
+
+      def update_ticket_attributes
         update_ticket_state
         update_ticket_pending_time
       end
diff --git a/lib/import/otrs/sys_config_factory.rb b/lib/import/otrs/sys_config_factory.rb
index 886dc4d17..a17abbe06 100644
--- a/lib/import/otrs/sys_config_factory.rb
+++ b/lib/import/otrs/sys_config_factory.rb
@@ -9,9 +9,15 @@ module Import
         settings.each do |setting|
           next if direct_copy?(setting)
           next if number_generator?(setting)
+          next if postmaster_default?(setting)
         end
       end
 
+      def postmaster_default_lookup(key)
+        @postmaster_defaults ||= {}
+        @postmaster_defaults[key]
+      end
+
       private
 
       def direct_settings
@@ -46,6 +52,22 @@ module Import
 
         true
       end
+
+      def postmaster_default?(setting)
+
+        relevant_configs = %w(PostmasterDefaultPriority PostmasterDefaultState PostmasterFollowUpState)
+        return false if !relevant_configs.include?(setting['Key'])
+
+        map = {
+          'PostmasterDefaultPriority' => :priority_default_create,
+          'PostmasterDefaultState'    => :state_default_create,
+          'PostmasterFollowUpState'   => :state_default_follow_up,
+        }
+
+        @postmaster_defaults ||= {}
+        @postmaster_defaults[ map[setting['Key']] ] = setting['Value']
+        true
+      end
     end
   end
 end
diff --git a/spec/import/otrs/priority_factory_spec.rb b/spec/import/otrs/priority_factory_spec.rb
index 0f3d82288..54ada125f 100644
--- a/spec/import/otrs/priority_factory_spec.rb
+++ b/spec/import/otrs/priority_factory_spec.rb
@@ -12,4 +12,32 @@ RSpec.describe Import::OTRS::PriorityFactory do
     expect(::Import::OTRS::Priority).to receive(:new).with(import_data)
     described_class.import([import_data])
   end
+
+  it 'sets default create Priority' do
+    priority                = ::Ticket::Priority.first
+    priority.default_create = false
+    priority.callback_loop  = true
+    priority.save
+
+    expect(Import::OTRS::SysConfigFactory).to receive(:postmaster_default_lookup).with(:priority_default_create).and_return(priority.name)
+
+    described_class.update_attribute_settings
+    priority.reload
+
+    expect(priority.default_create).to be true
+  end
+
+  it "doesn't set default create Priority in diff import" do
+    priority                = ::Ticket::Priority.first
+    priority.default_create = false
+    priority.callback_loop  = true
+    priority.save
+
+    expect(Import::OTRS).to receive(:diff?).and_return(true)
+
+    described_class.update_attribute_settings
+    priority.reload
+
+    expect(priority.default_create).to be false
+  end
 end
diff --git a/spec/import/otrs/state_factory_spec.rb b/spec/import/otrs/state_factory_spec.rb
index 06a5d8c9f..3601a6547 100644
--- a/spec/import/otrs/state_factory_spec.rb
+++ b/spec/import/otrs/state_factory_spec.rb
@@ -1,6 +1,8 @@
 require 'rails_helper'
 require 'import/transaction_factory_examples'
 
+RSpec::Matchers.define_negated_matcher :not_change, :change
+
 RSpec.describe Import::OTRS::StateFactory do
   it_behaves_like 'Import::TransactionFactory'
 
@@ -45,4 +47,65 @@ RSpec.describe Import::OTRS::StateFactory do
       ticket_pending_time.data_option
     }
   end
+
+  it "doesn't update ObjectManager Ticket state_id and pending_time filter in diff import" do
+
+    ticket_state_id = ::ObjectManager::Attribute.get(
+      object: 'Ticket',
+      name:   'state_id',
+    )
+    ticket_pending_time = ::ObjectManager::Attribute.get(
+      object: 'Ticket',
+      name:   'pending_time',
+    )
+
+    expect(Import::OTRS).to receive(:diff?).and_return(true)
+
+    expect {
+      described_class.update_attribute_settings
+
+      # sync changes
+      ticket_state_id.reload
+      ticket_pending_time.reload
+    }.to not_change {
+      ticket_state_id.data_option
+    }.and not_change {
+      ticket_state_id.screens
+    }.and not_change {
+      ticket_pending_time.data_option
+    }
+  end
+
+  it 'sets default create and update State' do
+    state                   = ::Ticket::State.first
+    state.default_create    = false
+    state.default_follow_up = false
+    state.callback_loop     = true
+    state.save
+
+    expect(Import::OTRS::SysConfigFactory).to receive(:postmaster_default_lookup).with(:state_default_create).and_return(state.name)
+    expect(Import::OTRS::SysConfigFactory).to receive(:postmaster_default_lookup).with(:state_default_follow_up).and_return(state.name)
+
+    described_class.update_attribute
+    state.reload
+
+    expect(state.default_create).to be true
+    expect(state.default_follow_up).to be true
+  end
+
+  it "doesn't set default create and update State in diff import" do
+    state                   = ::Ticket::State.first
+    state.default_create    = false
+    state.default_follow_up = false
+    state.callback_loop     = true
+    state.save
+
+    expect(Import::OTRS).to receive(:diff?).and_return(true)
+
+    described_class.update_attribute_settings
+    state.reload
+
+    expect(state.default_create).to be false
+    expect(state.default_follow_up).to be false
+  end
 end
diff --git a/spec/import/otrs/sys_config_factory_spec.rb b/spec/import/otrs/sys_config_factory_spec.rb
index 119568af4..cf646cb3b 100644
--- a/spec/import/otrs/sys_config_factory_spec.rb
+++ b/spec/import/otrs/sys_config_factory_spec.rb
@@ -3,4 +3,20 @@ require 'import/import_factory_examples'
 
 RSpec.describe Import::OTRS::SysConfigFactory do
   it_behaves_like 'Import factory'
+
+  it 'stores default postmaster values' do
+
+    value = 'new'
+
+    settings = [
+      {
+        'Key'   => 'PostmasterDefaultState',
+        'Value' => value
+      }
+    ]
+
+    described_class.import(settings)
+
+    expect(described_class.postmaster_default_lookup(:state_default_create)).to eq(value)
+  end
 end