<!--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> - [Work on this issue](https://contributors.gitlab.com/manage-issue?action=work&projectId=278964&issueIid=438283) - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=438283) </details> <!--IssueSummary end--> BB Server issue for epic https://gitlab.com/groups/gitlab-org/-/epics/12427+. ### Proposed actions * Implement a mechanism so that Admin can easily cancel a BB Server migrations. The aim is to allow an instance Admin to react fast to an incident - to cancel and delete the import. "Admin" means the instance Admin, not the user performing the migration. * Document in the runbook how to do that. Also, include in the runbook that importers can be disabled via UI.