A cash receipt was posted to the wrong customer invoices. To correct this we would normally go into AR/Trx/Cash Receipts/Enter Check Reversals. It is pretty straight forward. We just enter the check number, customer number, dates, etc. Unfortunately, Progression is not allowing us to do this. It says "No Record Found" but we double checked the data being entered, verified it is in the system, etc. It is applying to the AR account and we do not use Bank Book so neither of these would cause this issue. We did upgrade to Progression 7.7.8 a few months ago and probably have done a reversal since then. We need to be able to reverse this before closing. Has anyone had this issue or can offer any insight or ideas?

Are you using the same date for the reversal? The receipt date you enter on the reversal must be the same as original cash receipt transaction date. Is the receipt possibly an older transaction that has been cleared from the AR Open File?