This is what I have going on right now:
[Allowance] Column in Parent Table with the number of entries I want to allow
[Request] Virtual Column in Parent Table with COUNT([Related Request])
[Remaining Request] Virtual Column in Parent Table with ([Allowance] - [Request])
Action in Parent Table to open form and add request in Child Table with condition [Remaining Request] > 0
The Action works, I just can’t figure out how to apply it to the Child Table system Add action.