The screen shot below is MDA - a company I am trying to pay an invoice to. We have received all these items however, the third item (planner) was back ordered as it wasn't in stock so it came on a separate bill. I also am not able to complete the payment on that one. I believe I had previously tried to complete an FB60 but then realized I was supposed to complete a MIGO and MIRO but it did not end up working. I wrote the numbers down on the other screen shot. I tried looking through the other questions previously asked but wasn't able to find a solution. I'm pretty new to SAP so any detailed help would be much appreciated. Thanks!