<!--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=323387) </details> <!--IssueSummary end--> ## Problem to solve With the introduction of the concurrent model for the Gitlab Group Migration, the current developer documentation (https://docs.gitlab.com/ee/development/bulk_import.html) is outdated. - The epic description contains most of the information required to update the documentation: https://gitlab.com/groups/gitlab-org/-/epics/5544 - Take in consideration concerns about future changes: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/56242#note_530370120