PRE-CONDITION

1. Login to POS
2. Set a customer, then add an item
3. Process the payment

STEPS

1. Go to Receive Payments
2. Unpost and delete the generated RCV based from POS transaction
3. Verify the system behaviour

ISSUE

Displayed an incorrect error message where the generated invoice from POS is tagged as "Customer Prepayment; Once RCV is unposted, Invoice is not allowed to be unposted

ACCEPTED

Must be able to delete the record once unposted