diff --git a/app/models/file_attachment.rb b/app/models/file_attachment.rb
index 0d4e434b2db..9cb7acef905 100644
--- a/app/models/file_attachment.rb
+++ b/app/models/file_attachment.rb
@@ -55,6 +55,7 @@ def publishing_api_details_for_format
       filename:,
       number_of_pages:,
       preview_url:,
+      attachment_data_id:,
     }
   end
 
@@ -66,6 +67,12 @@ def alternative_format_contact_email
     nil
   end
 
+  def attachment_data_id
+    return unless csv? && attachable.is_a?(Edition) && attachment_data.all_asset_variants_uploaded?
+
+    attachment_data.id
+  end
+
   def preview_url
     return unless csv? && attachable.is_a?(Edition) && attachment_data.all_asset_variants_uploaded?
 
diff --git a/test/unit/app/models/file_attachment_test.rb b/test/unit/app/models/file_attachment_test.rb
index 7cca1fec314..6ce4443deb3 100644
--- a/test/unit/app/models/file_attachment_test.rb
+++ b/test/unit/app/models/file_attachment_test.rb
@@ -68,4 +68,9 @@ def assert_delegated(attachment, method)
     attachment = create(:csv_attachment, attachable: create(:edition))
     assert_equal Plek.asset_root + "/media/#{attachment.attachment_data.id}/sample.csv/preview", attachment.publishing_api_details_for_format[:preview_url]
   end
+
+  test "return media attachment_data_id if all_asset_variants_uploaded?" do
+    attachment = create(:csv_attachment, attachable: create(:edition))
+    assert_equal attachment.attachment_data.id, attachment.publishing_api_details_for_format[:attachment_data_id]
+  end
 end