Receivables dispute approved doesn't create credit memo - No data found error message ORA-01403

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Description (Required): User is submitting a dispute were the customer sites address used on the invoice are in-active . The dispute is approved but doesn't create a Credit memo. BPM work flow shows ORa-01403 no data found generic error. The user should get and valid error message. The dispute goes for approival and is approved. After approvals user just waits there for the credit memo to created.

Which is wrong. If the customer site is in-active the user should get a valid error message informing him the cutsomer site is in-active and stop him there. instead of prushing the dispute for approval and getting approved.