How to make overdue invoices available for application for a receipt in AR?

 Hi All,

We have 2 overdue invoices for customer A in Oracle Receivables 11.5.10.2.  The 2 invoices - invoice# 1 and invoice# 2 of EUR 75 each were due in OCT-13. We also have an Unapplied Standard (Cash) receipt of EUR 150 for this customer. So, the total balance due is 0. But we want to make the 2 unpaid invoices to become fully paid. I opened this receipt and clicked on Apply button. In the Applications form, under the Apply To field, the only choices I get are - Credit Card Refund, On Account, and Receipt Write-off. I don't see invoice#1