PO auto approval based on agreement header amount

Summary: we want is the standard PO that is sourced to either a CPA or a BPA and in either case said agreement has a Header Agreement Amount doesn't go through Procurement approval and should auto approve (autoapproval), in tandem all POs that don't comply with said conditions will still need to go through approvals

Please let us know if there is any rule attribute through which we can fulfil this criteria

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