Even Oracle’s developers could miss few details and end up with nasty bugs at customers’ end. Would they fix them against customer reports? Not always…This leaves few of the bugs open for years.

The perfect example is Oracle Accounts Payable Invoice batches entry form. If the Supplier site doesn’t have a valid payment method set, the form will show you a WHEN-VALIDATE-ITEM error message by the status line and will not let you proceed further.

Simple, efficient and system generated! Nothing else to be done. Well, if you are stuck, open the supplier details and check whether the party has a default payment method set, if yes, go to the supplier site record for the organization where the error happens set up the payment method. For other errors, Oracle might have some other error messages ;)