diff --git a/config/feature_flags/beta/single_relation_import.yml b/config/feature_flags/beta/single_relation_import.yml
deleted file mode 100644
index 312b3026d9a15f4b5bb1429553add6dc20d47e00..0000000000000000000000000000000000000000
--- a/config/feature_flags/beta/single_relation_import.yml
+++ /dev/null
@@ -1,9 +0,0 @@
----
-name: single_relation_import
-feature_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/425798
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/149444
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/455889
-milestone: '16.11'
-group: group::import and integrate
-type: beta
-default_enabled: false
diff --git a/doc/api/project_import_export.md b/doc/api/project_import_export.md
index 93def8c57fc08a8bbd8053ca48eb7ace4ea0231b..84d95da6e8b0f150316abef8ce2f7ab8a383416f 100644
--- a/doc/api/project_import_export.md
+++ b/doc/api/project_import_export.md
@@ -269,7 +269,7 @@ The `Content-Type` header must be `application/gzip`.
 ## Import a single relation
 
 > - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/425798) in GitLab 16.11 in [beta](../policy/experiment-beta-support.md#beta)), [with a flag](../administration/feature_flags.md) named `single_relation_import`. Disabled by default.
-> - [Enabled on GitLab.com](https://gitlab.com/gitlab-org/gitlab/-/issues/455889) in 17.1.
+> - [Enabled on GitLab.com, self-managed and Dedicated](https://gitlab.com/gitlab-org/gitlab/-/issues/455889) in 17.1.
 
 This endpoint accepts a project export archive and a named relation (issues,
 merge requests, pipelines, or milestones) and re-imports that relation, skipping
diff --git a/lib/api/project_import.rb b/lib/api/project_import.rb
index c7fd491d5b7463e5a24a584d35186141576f0e95..44f3e90d7044238d75009cc5d96ef24b29c06bed 100644
--- a/lib/api/project_import.rb
+++ b/lib/api/project_import.rb
@@ -239,7 +239,6 @@ def filtered_override_params(params)
         consumes ['multipart/form-data']
       end
       post 'import-relation' do
-        not_found! unless Feature.enabled?(:single_relation_import, current_user, type: :beta)
         forbidden! unless Gitlab::CurrentSettings.import_sources.include?('gitlab_project')
 
         require_gitlab_workhorse!
diff --git a/spec/requests/api/project_import_spec.rb b/spec/requests/api/project_import_spec.rb
index a86e77319d4163721a9dcd9233aae737551edf3b..1b0f654e7a82dac9d1c84ea7c79ab42b20369dd7 100644
--- a/spec/requests/api/project_import_spec.rb
+++ b/spec/requests/api/project_import_spec.rb
@@ -608,20 +608,6 @@ def stub_import(namespace)
       end
     end
 
-    context 'when the feature flag :single_relation_import is disabled' do
-      before do
-        stub_feature_flags(single_relation_import: false)
-      end
-
-      it 'returns not found' do
-        params[:path] = 'any/project'
-
-        perform_relation_import
-
-        expect(response).to have_gitlab_http_status(:not_found)
-      end
-    end
-
     def upload_relation_archive(file, headers = {}, params = {})
       workhorse_finalize(
         api("/projects/import-relation", user),