My situation is this:
BACKGROUND: Weekly, we create invoices that go to a number of clients. Our clients are subsets of various corporate entities, so that we may bill the Corporate client at site A, Site B, and so forth. Our invoices are sent to the site and approved by the project manager and then on to corporate.
The project managers, internally, use Purchase Orders. For MOST of the sites, the project managers simply forward our invoice stapled to the Purchase Oder and then the AP clerk puts the invoice number on the check stub.
One project manager, for whatever reason, does not forward our invoice but only his purchase order. Consequently, the check stub from the client lists a series of invoices and, for that one site, their purchase order number instead of our invoice number.
The invoices are always the same amount so it is impossible for me to precisely match the payment to the invoice.
I could just arbitrarily assign each incoming payment to the oldest invoice for that site but that's probably just putting off the issue. The first time a payment is questioned, their records would probably show an invoice as paid that we show as open.
I'm working on getting this fellow to comply with the prevailing practice but in the meantime, I need to keep my accounting system squared away.
MY NEED: Some way to record the payment (even if temporarily) while keeping track well enought to eventually go back and sort this all out, while at the same time having the outstanding AR all in balance.
Any ideas?