<!--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=28955) </details> <!--IssueSummary end--> ### Problem to solve The slack integration now notifies when a deployment finishes. Amazing, a much needed feature. Out of complete shortsightedness, it does not notify when a deployment starts (!?!?!). Many users will want to be notified not only when the deployment finishes, but also when it begins. ### Intended users Everyone ### Proposal In the slack integration, make the "deployment" option "deployment finishes" and then add a "deployment starts" option.