At times you may find an unallocated customer payment on a customer Masterfile transaction list (Trans F5) that is no longer needed. Unallocated customer payments are often system-generated in one of the following ways:
If you process a customer payment without allocating it to a customer invoice
If you process a customer payment and allocate a different amount to the customer invoice than the total amount of the payment (e.g. the total amount of the payment is $1,000 and you allocate $900 to the invoice).
Reverse an unallocated customer payment
Determine the invoice the customer payment relates to:
If you cannot determine the invoice, then pick another one.
If there is no customer invoice, then a zero-value customer invoice needs to be created. Use the same date as the unallocated payment with a sundry line.
Choose Customers, Transactions, Payments, Post Unallocated Trans and allocate the unallocated payment to the invoice identified in step 1.
Check this allocation using Customers, Masterfiles, Customers, Enquire and enter the Customer Code and choose Trans F5.
Once done, then reverse the customer payment.