If you wanted to automate the reversing process in code, you could use InventJournalCopy something like this (look at InventJournalCopy::main(..) for usage hints) InventJournalCopy copy = InventJournalCopy::construct(); copy.getLast(); copy.parmJournalIdFrom( journalNumHere ); copy.run(); This is not tested code. Use at your own risk.