When requisition total amount is not met, if I allow delete of system approvers, requstion should st

At my client, we allow deletion of system generated approvers (AME/iProcurement based Requisition Approval), where we have set the profile option POR: System Approvers are Mandatory=NO.

When approval hierarchy is built, this is the problem we are facing:

(1) if the preparer/requester, uses the Manage Approval button, to delete the last approver, it  would mean, that the REQUISTION_TOTAL amount is not met

(2) After doing step 1, when the requester submits the requisition, logically, after all approvers have approved, the requisition should stay incomplete

(3) This is because the Requisition should check to see if the REQUISTION_TOTAL amount limit is met when AME generated the hierarchy of approvers