Error reversing a General Journal Register

jackies

When I attempt to reverse a specific register I get the error message below:

"You can not reverse register No. 1328 because it contains customer or vendor ledger entries that have been posted and applied in the same transaction. You must reverse each transaction in register No. 1328 seaparately."

This register contains more than 50 transactions. I started checking the entries to see which have detailed ledger entries with application to unapply, and most of the times it directs me to another transaction, then to another until I unapply this entry.

This whole process is time consuming and I can't find what's the combination the user has used which causes this problem.

Thanks in advance

jackies

I think I found what is causing this:

A few years back, we have set automatic allocations on the Customer/Vendor cards. What we did was to set the value in Application Method, in the Payments tab of the cards, to Apply to Oldest. As a result, the system applied the payments to the oldest open entries.