Formula in a Form Column and a validation for the entry

I have a form where all items must be checked in a embedded table list of a column. I can compare row count to checked count with formula. Is there a way to both have a formula in a Form Column to get the list of rows-list of rows checked from another form column value and have it validate against a given value and block submitting with validation error message?

Hi Thomas, in the edit layout of the form, each column has a Validation settings that you can set with a formula. It may be your answer.

CleanShot 2024-05-25 at 08.03.06