Payables invoice bpm workflow. How do I skip participants when no rules apply.

Summary: We have multiple participates, which containing multiple rules routing invoices to different approval groups, requesters and management hierarchy. it was suggested to create an auto approval rule (1 is 1) to let oracle know to skip a participate if no rule applies, but that did not work as the auto approval rule still fired and ultimate approved the invoice would routing to any of the approvers. The oracle said to set the auto approval rule '1 is 1' at the lowest priority, that did not work, then it said to set the using 'supervisory with level =0, 'that