I set some columns to be required columns on Dataverse.
'Required' worked well, except for lookup columns.
There are dropdown box for column requirement options even when I make new lookup columns. However, when I tried to create a new record on Power Apps using Patch or Collect function, record without required data in lookup columns was able to accepted without any error.
Thus I need to see if there are any blank for these columns on Power Apps so far.
I appreciate if Dataverse itself would reject a new record with blank in required lookup columns.