diff --git a/app/assets/javascripts/app/controllers/_integration/ldap.coffee b/app/assets/javascripts/app/controllers/_integration/ldap.coffee
index d861005ca..c6ca0e2b1 100644
--- a/app/assets/javascripts/app/controllers/_integration/ldap.coffee
+++ b/app/assets/javascripts/app/controllers/_integration/ldap.coffee
@@ -498,9 +498,9 @@ class ConnectionWizard extends App.WizardModal
         finished: true
       processData: true
       success: (job, status, xhr) =>
-        if job.result && job.result.error
+        if job.result && (job.result.error || job.result.info)
           @showSlide('js-error')
-          @showAlert('js-error', job.result.error)
+          @showAlert('js-error', (job.result.error || job.result.info))
           return
 
         if job.result && job.result.sum
diff --git a/app/assets/javascripts/app/views/integration/ldap_last_import.jst.eco b/app/assets/javascripts/app/views/integration/ldap_last_import.jst.eco
index 9388cd23d..163f59277 100644
--- a/app/assets/javascripts/app/views/integration/ldap_last_import.jst.eco
+++ b/app/assets/javascripts/app/views/integration/ldap_last_import.jst.eco
@@ -3,6 +3,8 @@
   <% if _.isEmpty(@job.started_at): %>
     <% if @job.result && @job.result.error: %>
         <div class="alert alert--danger" role="alert"><%- @T('An error occurred: %s', @job.result.error) %></div>
+    <% else if @job.result && @job.result.info: %>
+        <div class="alert alert--info" role="alert"><%- @T('Info: %s', @job.result.info) %></div>
     <% else: %>
       <p><%- @T('Job is waiting to get started...') %></p>
     <% end %>
@@ -11,6 +13,8 @@
       <p><%- @Ttimestamp(@job.started_at) %> - <%- @Ttimestamp(@job.finished_at) %></p>
       <% if @job.result && @job.result.error: %>
         <div class="alert alert--danger" role="alert"><%- @T('An error occurred: %s', @job.result.error) %></div>
+      <% else if @job.result && @job.result.info: %>
+        <div class="alert alert--info" role="alert"><%- @T('Info: %s', @job.result.info) %></div>
       <% end %>
     <% else: %>
       <% if @job.result && @job.result.error: %>
diff --git a/lib/import/ldap.rb b/lib/import/ldap.rb
index ea643781d..e817762e3 100644
--- a/lib/import/ldap.rb
+++ b/lib/import/ldap.rb
@@ -28,10 +28,7 @@ module Import
     #
     # return [nil]
     def start
-      if !Setting.get('ldap_integration') && !@import_job.dry_run
-        raise "LDAP integration deactivated, check Setting 'ldap_integration'."
-      end
-
+      return if !requirements_completed?
       start_import
     end
 
@@ -48,5 +45,23 @@ module Import
 
       @import_job.result = Import::Ldap::UserFactory.statistics
     end
+
+    def requirements_completed?
+      return true if @import_job.dry_run
+
+      if !Setting.get('ldap_integration')
+        message = 'Sync cancelled. LDAP integration deactivated. Activate via the switch.'
+      elsif Setting.get('ldap_config').blank? && @import_job.payload.blank?
+        message = 'Sync cancelled. LDAP configration or ImportJob payload missing.'
+      end
+
+      return true if !message
+
+      @import_job.update_attribute(:result, {
+                                     info: message
+                                   })
+
+      false
+    end
   end
 end
diff --git a/spec/lib/import/ldap_spec.rb b/spec/lib/import/ldap_spec.rb
index ecb58fbdb..645c45a2c 100644
--- a/spec/lib/import/ldap_spec.rb
+++ b/spec/lib/import/ldap_spec.rb
@@ -4,7 +4,7 @@ require 'lib/import/import_job_backend_examples'
 RSpec.describe Import::Ldap do
   it_behaves_like 'ImportJob backend'
 
-  describe '#queueable?' do
+  describe '::queueable?' do
 
     it 'is queueable if LDAP integration is activated and configured' do
       allow(Setting).to receive(:get).with('ldap_integration').and_return(true)
@@ -25,16 +25,65 @@ RSpec.describe Import::Ldap do
     end
   end
 
-  describe '.start' do
-
+  describe '#start' do
     it 'starts LDAP import resource factories' do
       import_job = create(:import_job)
       instance   = described_class.new(import_job)
 
       allow(Setting).to receive(:get).with('ldap_integration').and_return(true)
+      allow(Setting).to receive(:get).with('ldap_config').and_return(true)
       expect(Import::Ldap::UserFactory).to receive(:import)
 
       instance.start
     end
+
+    context 'requirements' do
+
+      it 'lets dry runs always start' do
+        import_job = create(:import_job, dry_run: true)
+        instance   = described_class.new(import_job)
+
+        expect(Import::Ldap::UserFactory).to receive(:import)
+
+        instance.start
+      end
+
+      it 'informs about deactivated ldap_integration' do
+        import_job = create(:import_job)
+        instance   = described_class.new(import_job)
+
+        allow(Setting).to receive(:get).with('ldap_integration').and_return(false)
+
+        expect(Import::Ldap::UserFactory).not_to receive(:import)
+
+        expect do
+          instance.start
+          import_job.reload
+        end.to change {
+          import_job.result
+        }
+
+        expect(import_job.result.key?(:info)).to be true
+      end
+
+      it 'informs about blank ldap_config' do
+        import_job = create(:import_job)
+        instance   = described_class.new(import_job)
+
+        allow(Setting).to receive(:get).with('ldap_integration').and_return(true)
+        allow(Setting).to receive(:get).with('ldap_config').and_return({})
+
+        expect(Import::Ldap::UserFactory).not_to receive(:import)
+
+        expect do
+          instance.start
+          import_job.reload
+        end.to change {
+          import_job.result
+        }
+
+        expect(import_job.result.key?(:info)).to be true
+      end
+    end
   end
 end