diff --git a/db/docs/batched_background_migrations/backfill_scan_result_policies_project_id.yml b/db/docs/batched_background_migrations/backfill_scan_result_policies_project_id.yml
index 0c2b136fc50392dde0cb5b12e9403ca527603d39..7106059756a3be306c148bf70721d4b7b1c83839 100644
--- a/db/docs/batched_background_migrations/backfill_scan_result_policies_project_id.yml
+++ b/db/docs/batched_background_migrations/backfill_scan_result_policies_project_id.yml
@@ -5,4 +5,4 @@ feature_category: security_policy_management
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/183125
 milestone: '17.10'
 queued_migration_version: 20250301125534
-finalized_by: # version of the migration that finalized this BBM
+finalized_by: '20250711031222'
diff --git a/db/post_migrate/20250711031222_finalize_backfill_scan_result_policies_project_id.rb b/db/post_migrate/20250711031222_finalize_backfill_scan_result_policies_project_id.rb
new file mode 100644
index 0000000000000000000000000000000000000000..ef9aa6b02144d5c79cc7522e2814169420496f2e
--- /dev/null
+++ b/db/post_migrate/20250711031222_finalize_backfill_scan_result_policies_project_id.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+class FinalizeBackfillScanResultPoliciesProjectId < Gitlab::Database::Migration[2.3]
+  milestone '18.3'
+  disable_ddl_transaction!
+
+  restrict_gitlab_migration gitlab_schema: :gitlab_main_cell
+
+  def up
+    ensure_batched_background_migration_is_finished(
+      job_class_name: 'BackfillScanResultPoliciesProjectId',
+      table_name: :scan_result_policies,
+      column_name: :id,
+      job_arguments: [:project_id, :security_orchestration_policy_configurations, :project_id,
+        :security_orchestration_policy_configuration_id],
+      finalize: true
+    )
+  end
+
+  def down; end
+end
diff --git a/db/schema_migrations/20250711031222 b/db/schema_migrations/20250711031222
new file mode 100644
index 0000000000000000000000000000000000000000..51d8ff814944bc0780edf2a294938d3d35f211bd
--- /dev/null
+++ b/db/schema_migrations/20250711031222
@@ -0,0 +1 @@
+37c9b27b56354045b0d8bea53a104d3025e128a2e3d008d9c59308fa0e42af4c
\ No newline at end of file