Answer:
Once you are certain that the transactions were completed by the customers, you can post them without regard to the date they were completed. You will make some customers unhappy, particularly those that may have believed they were getting away with something. However, there is no "stale" date on these transactions, and it would be unjust enrichment for any customers whose transactions didn't "catch up with them."
First published on BankersOnline.com 9/24/12