<!--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=444244) </details> <!--IssueSummary end--> ### Proposal Allow the installation of the Slack APP for a project via API. ### Problem to solve The installation of the Slack APP in projects has to be done via the UI, which is very time-consuming for customers with big number of projects as it is not possible to automate the process.