AT_LEAST_ONE_RULE_MUST_APPLY for non po matched invoices

Hi Guru's,

We had setup the AME rules for non po matched invoices but the issue is users are selecting different accounts where the rules are not defined for those accounts in AME so that they can avoid invoice approval for non po matched invoices.

so our client wants to setup one common approval group all non po matched invoices provided if there are no existing rules are applicable.

I tried setting up rules with AT_LEAST_ONE_RULE_MUST_APPLY but invoices are going for approval even for the existing defined rules as well. we don't want to send for approval again for the existing rules.