<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=336606) </details> <!--IssueSummary end--> ### Problem statement `BulkImports::Entity` model has a required `destination_namespace` attribute https://gitlab.com/gitlab-org/gitlab/blob/master/app/models/bulk_imports/entity.rb#L41-41 When entity is a Group, sometimes we want to create it for a root namespace, where `destination_namespace` is nil. If you try to create such entity - an exception is going to be raised. Update `BulkImports::Entity` model to allow `destination_namespace` to be nil when it is a group entity. I think for projects it's still required, as we can't have a project without a namespace associated with it (right?)