APP-PO-14160: Document action not completed successfully typically occurs in Oracle E-Business Suite (EBS) when a user attempts a "Control" action (such as Cancel, Finally Close, or Close) on a document that is in a status incompatible with that action. Common Root Causes Status Conflict
PO_ACTION_APPROVEPO_ACTION_RELEASE_HOLDPO_ACTION_MODIFY_LINESBrowser-based ERP systems or thick clients often cache document metadata. After a PO changes on the server, your local cache becomes stale. When you submit an action based on stale data, the server rejects it.
"Error 14160: User [ID] attempted to set status='APPROVED' on PO_ID=5678 but workflow rule WF-210 requires vendor approval flag=True."