Hi, @Anonymous ... thank you for thinking of me 😉.
Is the form in question the SharePoint form for the list?
Why not enforce required columns? That way they are told there and then that things are wrong.
I used the calculation example from here to build some validation into this example, so not only can they not fill out the form without entering data in the required column, but also it must include an uppercase 'BD':
=ISNUMBER(FIND("BD",required))
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