Understanding Posting Payments to Summary Invoices
You can post payments to summary invoices through the Accounts Receivable Posting window. A summary billing consolidates a number of individual orders into a single summary invoice. A summary invoice is identified by an extension of -S. (For example, you may have summary invoice number 1000-S.)
You post payments to summary invoices just as you do other invoices. When you do, you can pay the entire invoice or only a part of it. If you pay only a part of the summary invoice, S gives you the option of displaying the individual delivery tickets from the summary invoice, and marking the ones you are paying. However, these marks are for reference only; Silver Plus eNsite does not attribute the payment specifically to the marked delivery tickets.