how to revert the requisition

Hi All,

As our business use AME for approval of Purchase requisition.

Based on COA approval will be need form two user.

unfortunately first Rule of the approver has end dated and revert that changes back.

but POR went to 2 approver and approved the POR by the second approver.

now how to get the approval form the first approver.

is their any work around to revert the work flow or how to re-submit the same POR now to get the first approver approval.

Regards,

Naveen