Open Bills not showing in vendor prepayment application

Things to confirm to identify why open bills are not showing for vendor prepayment application:

1. Is the subsidiary and currency of the vendor prepayment the same as that of the open bills? Bills available for application must have the same payee, subsidiary, and currency as the initial vendor prepayment.
2. Is the vendor Prepayment in the Paid status? You cannot apply a prepayment that has the status of Pending Approval or Rejected.
3. Are the Bills approved? You can only apply against open bills. Bills that have a Payment Hold or Pending Approval status do not show up on the application page.
4. Is the A/P account selected on the vendor prepayment application page the same as that of the open bill? The available bills depend on the Accounts Payable Account selected in the application.