are you using workflow for approval?
or standard SAP?
Are you using EBP/SRM and shopping carts? These can be rejected.
Otherwise if you are not happy with the purchase order, you can reject it by clicking Reject on the Release Strategy tab page.
The buyer must then cancel the rejection in Change Purchase Order (ME22N) by clicking on the Release Strategy tab page. The buyer can then process the purchase order again.
Clicking the button enables you to also cancel the rejection in Release Purchase Order (ME29N).
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