How to create self-pruning dropdown

Hi @ACD ! Welcome to the community :grin: !

It should be possible :wink:
Without more info about your doc, this is a little something you should be able to play with to get the desire result :wink:.

It uses 2 Lookup fields. The one in [Lessons] does, I think, what you are looking for :wink: .
The Lookup in [Prof] is a “Referenced Lookup”.

There are 2 different examples in this doc that work together :

  • Prof [Lookup] 1 and Lessons [Lookup] 1
  • Prof [Lookup] 2 and Lessons [Lookup] 2

There might be other ways to do this though :slight_smile: : It’s just an idea :wink: