1 Reply Latest reply on Feb 23, 2009 3:50 AM by hiatts

    multiple invoice payments not computing



      multiple invoice payments not computing


      We often receive more than a single payment for an invoice.  I have PAYMENTS joined to INVOICES through a INVOICE_PAYMENTS table.  INVOICES contains Total Amount (sum of all LINES) and Total Due (Total Amount - PAYMENTS amount). 


      When I try to enter a new payment in the PAYMENTS table, and look-up the INVOICE, the total due calculation has dropped any other payments.  For example, if Amount = 200, and a Payment of 50 has already been made, Due = 150.  When I enter a 2nd payment of 150, the Due amount changes to 50, where I expect 0.