Solution : https://service.sap.com/sap/support/notes/797521 (SAP Service marketplace login required)
Key words :
support packages sapkh46c46, change purchase orders, transaction code me21n, transaction authorization check, authorization check, transaction me23n, terms tcode, bapi_po_change reason, completely removed, bapi processing
Related Notes :
| 1414255 | Authorization check on transaction code in BAPI_PR_CREATE |
| 1050832 | ME23N in Compliance Calibrator (RAR) Default rules |