Reject purchase order if the Requestion Header Amount is higher

Summary:

Dear All

Is there a way to reject a Purchase Order if the total amount at the PO header level exceeds the amount at the Requisition header level? Currently, we are validating based on the matching between the PO line and the corresponding Requisition line. However, in some cases, the business adds additional PO lines that are not linked to the Requisition lines. In such cases, we need a validation that ensures the total PO header amount does not exceed the total Requisition header amount.

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