there have one issue's need your heep.
i used MFBF to backflush and there need to enter batch. but when i enter F4 in Batch field for search correct batch no, system was show all batch for this material include old batch(deletion flag). and also allow posting for batch with deletion flag without any message.
whether R/3 has standard function for control not allow to show old batch(deletion flag).
and when enter already deleted batch, can MFBF show message from standard function?