3171397 - Cannot change a purchase requisition (PR) or purchase order (PO)

I do not see the Change button on a purchase requisition (PR) or purchase order (PO).

I see the Change button on a PR or PO, but I get an error message when I click it.

I cannot change a PR or PO.

cannot change po, cannot change order, can't change po, can't change order, change button missing, missing change button , KBA , migration source: knowledge@ariba , change purchase order , migrated on: 2022-04-02 13:51:54 , BNS-ARI-PUR-REQ , Requisitioning , BNS-ARI-PUR-PO , Purchase Orders , Problem