Form A has as its RecordSource a query based on the fields of Table A.
Form B has as its RecordSource a query based on the fields of Table B. (The two queries are exclusive of each other. I.e., NOT union queries)
Form B has in its code sheet Dlookups of fields contained in Table B.
Form A has amongst its command buttons a command button to open Form B.
Form A has in all likeliness updated text-boxes bound to fields in its RecordSource, notably the very fields Form B will execute DLookups upon.
Finally, the question is what needs to be executed in Form A prior to launching Form B that will force completion of any updating to fields in Form A's RecordSource?
Thanks,
Bill