Making RR and UD for Lots in REL status automatically

Hello Experts..

We have More than 200 insp lots got created for Production order GRs.(Lot for each GR)

Now they want to clear it up by posting the UD, but the lots are in REL status.

So the Requirment is now-

The 04 inspection lots which are in REL status- needs to be RR and UD posted.

But Nothing common in lots accepts Inspection type.     Inpsection plan , material etc are different for lots.

There is in one cutom field they are using in inspection lot which is common for all the lots, and they want to do the UD based on that Field.