Hello,
We really need the ability to archive a button. I've seen discussion on this missing feature elsewhere, so figured an official request is required here;
As you can see, we have sorted tasks into buckets that represent the month. And once we've cleared all of the tasks in a bucket, we effectively need to archive that bucket which removes it from view (but doesn't delete it).
Keen to have this feature sooner than later, others have been waiting 5 years for such a feature...
It's been over 5 years since a user requested this very same enhancement on the Planner website, and it still hasn't been developed. I'll hazard a guess that Microsoft don't use that site...
Fingers crossed that they see the same idea posted here.