Solution : https://service.sap.com/sap/support/notes/444916 (SAP Service marketplace login required)
Key words :
'materials management -> purchasing -> messages -> output control -> message types', message type field 'print parameter', additional key words messages, choose 'maintain message types, set field 'print parameters', 'define message types, desired message type, tab page 'print', message output, maintained field 'authorization'
Related Notes :
457497 | FAQ: Message processing in purchasing |
308546 | No authorization check when printing purch. docs |