diff --git a/app/models/concerns/import/has_import_source.rb b/app/models/concerns/import/has_import_source.rb
index e7be1200dec2b8908b2f87187889fa7f64c61cbd..fcbf6fe32a2cfc3012c1067ac993e1daa5a4b064 100644
--- a/app/models/concerns/import/has_import_source.rb
+++ b/app/models/concerns/import/has_import_source.rb
@@ -4,6 +4,7 @@ module Import
   SOURCE_DIRECT_TRANSFER = :gitlab_migration # aka BulkImports
   SOURCE_PROJECT_EXPORT_IMPORT = :gitlab_project
   SOURCE_GROUP_EXPORT_IMPORT = :gitlab_group
+  SOURCE_BITBUCKET_SERVER = :bitbucket_server
 
   module HasImportSource
     extend ActiveSupport::Concern
@@ -15,7 +16,7 @@ module HasImportSource
       SOURCE_GROUP_EXPORT_IMPORT => 3,
       github: 4,
       bitbucket: 5, # aka bitbucket cloud
-      bitbucket_server: 6,
+      SOURCE_BITBUCKET_SERVER => 6,
       fogbugz: 7,
       gitea: 8,
       git: 9, # aka repository by url
diff --git a/lib/gitlab/bitbucket_server_import/importers/pull_request_importer.rb b/lib/gitlab/bitbucket_server_import/importers/pull_request_importer.rb
index 3aa1d88347a720be1868629c9de34a663db5fceb..198f0ed35615cf5bc78720f8b69c7ad5f2c16f79 100644
--- a/lib/gitlab/bitbucket_server_import/importers/pull_request_importer.rb
+++ b/lib/gitlab/bitbucket_server_import/importers/pull_request_importer.rb
@@ -34,7 +34,8 @@ def execute
             state_id: MergeRequest.available_states[object[:state]],
             author_id: user_finder.author_id(object),
             created_at: object[:created_at],
-            updated_at: object[:updated_at]
+            updated_at: object[:updated_at],
+            imported_from: ::Import::HasImportSource::IMPORT_SOURCES[:bitbucket_server]
           }
 
           creator = Gitlab::Import::MergeRequestCreator.new(project)
diff --git a/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes.rb b/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes.rb
index b3db7ff5075e06de6ad0be5c8145e76695fba889..fadddabd9edab9a8fcddaf1c4b4c1c5d5dcbb2d1 100644
--- a/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes.rb
+++ b/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes.rb
@@ -34,6 +34,10 @@ def execute(comment)
               comment_id: comment[:id]
             )
           end
+
+          def pull_request_comment_attributes(comment)
+            super(comment).merge(imported_from: ::Import::SOURCE_BITBUCKET_SERVER)
+          end
         end
       end
     end
diff --git a/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer.rb b/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer.rb
index 283c405eff21849bc9adb508b8c265435ac8f9c6..ef6715db3bef41f97780129c66779193c9317e97 100644
--- a/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer.rb
+++ b/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer.rb
@@ -217,7 +217,8 @@ def pull_request_comment_attributes(comment)
             note: note,
             author_id: author,
             created_at: comment.created_at,
-            updated_at: comment.updated_at
+            updated_at: comment.updated_at,
+            imported_from: ::Import::SOURCE_BITBUCKET_SERVER
           }
         end
 
diff --git a/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_importer_spec.rb b/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_importer_spec.rb
index 9c11fb67f78bc1c7b2a5b049559aca65c2e712ec..24b867c475cab90a23f659bda4f69c40d564e602 100644
--- a/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_importer_spec.rb
+++ b/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_importer_spec.rb
@@ -33,7 +33,8 @@
         reviewer_ids: match_array([reviewer_1.id, reviewer_2.id]),
         state: pull_request.state,
         author_id: project.creator_id,
-        description: "*Created by: #{pull_request.author}*\n\n#{pull_request.description}"
+        description: "*Created by: #{pull_request.author}*\n\n#{pull_request.description}",
+        imported_from: 'bitbucket_server'
       )
     end
 
diff --git a/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes_spec.rb b/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes_spec.rb
index d0923687521a02b3a8e5d1213b76c54a00acd4f1..94a901f2d3b7508023492bf7cbaab0bd841e83d2 100644
--- a/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes_spec.rb
+++ b/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes/standalone_notes_spec.rb
@@ -53,7 +53,8 @@ def expect_log(stage:, message:, iid:, comment_id:)
         note: end_with(pr_comment[:note]),
         author: note_author,
         created_at: pr_comment[:created_at],
-        updated_at: pr_comment[:created_at]
+        updated_at: pr_comment[:created_at],
+        imported_from: 'bitbucket_server'
       )
     end
 
@@ -67,7 +68,8 @@ def expect_log(stage:, message:, iid:, comment_id:)
           comments: [],
           created_at: now,
           updated_at: now,
-          parent_comment_note: nil
+          parent_comment_note: nil,
+          imported_from: 'bitbucket_server'
         }
       end
 
@@ -80,7 +82,8 @@ def expect_log(stage:, message:, iid:, comment_id:)
           comments: [pr_comment_extra],
           created_at: now,
           updated_at: now,
-          parent_comment_note: nil
+          parent_comment_note: nil,
+          imported_from: 'bitbucket_server'
         }
       end
 
@@ -94,13 +97,15 @@ def expect_log(stage:, message:, iid:, comment_id:)
           note: end_with(pr_comment[:note]),
           author: note_author,
           created_at: pr_comment[:created_at],
-          updated_at: pr_comment[:created_at]
+          updated_at: pr_comment[:created_at],
+          imported_from: 'bitbucket_server'
         )
         expect(merge_request.notes.last).to have_attributes(
           note: end_with(pr_comment_extra[:note]),
           author: note_author,
           created_at: pr_comment_extra[:created_at],
-          updated_at: pr_comment_extra[:created_at]
+          updated_at: pr_comment_extra[:created_at],
+          imported_from: 'bitbucket_server'
         )
       end
     end
@@ -129,7 +134,8 @@ def expect_log(stage:, message:, iid:, comment_id:)
           comments: [],
           created_at: now,
           updated_at: now,
-          parent_comment_note: 'Parent note'
+          parent_comment_note: 'Parent note',
+          imported_from: 'bitbucket_server'
         }
       end
 
diff --git a/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer_spec.rb b/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer_spec.rb
index 7f7d12eb8fcb72805e5f0c1d9e3f36765f9c638d..ee1b53b566fa869a9b6ed4acbdff351a8e70f5e6 100644
--- a/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer_spec.rb
+++ b/spec/lib/gitlab/bitbucket_server_import/importers/pull_request_notes_importer_spec.rb
@@ -127,7 +127,8 @@ def expect_log(stage:, message:)
             note: end_with(pr_note.note),
             author: note_author,
             created_at: pr_note.created_at,
-            updated_at: pr_note.created_at
+            updated_at: pr_note.created_at,
+            imported_from: 'bitbucket_server'
           )
         end
 
@@ -263,6 +264,7 @@ def expect_log(stage:, message:)
           expect(start_note.position.old_line).to be_nil
           expect(start_note.position.new_line).to eq(pr_inline_note.new_pos)
           expect(start_note.author).to eq(inline_note_author)
+          expect(start_note.imported_from).to eq('bitbucket_server')
 
           reply_note = notes.last
           expect(reply_note.note).to eq(reply.note)
@@ -271,6 +273,7 @@ def expect_log(stage:, message:)
           expect(reply_note.updated_at).to eq(reply.created_at)
           expect(reply_note.position.old_line).to be_nil
           expect(reply_note.position.new_line).to eq(pr_inline_note.new_pos)
+          expect(reply_note.imported_from).to eq('bitbucket_server')
         end
 
         context 'when the `bitbucket_server_convert_mentions_to_users` flag is disabled' do