Solution : https://service.sap.com/sap/support/notes/443439 (SAP Service marketplace login required)
Key words :
additional key words, attached correction instructions, preliminary entry system, entry exists, apo system, crm system, system settings, crm system -, availability check, accept deviations
Related Notes :
397032 | CRM 3.0-APO/ATP: Collective note / settings and restrictions |