Message SAP WU352 - Arrangements can only be created in the 'Change' mode for the promotion

Diagnosis
You are currently in the "Create promotion" mode. However, creation ofpromotion arrangements is not permitted in this mode, as a promotionnumber has not yet been assigned, or the promotion number you enteredhas not yet been saved.

System Response
Creation of promotion arrangements is blocked.

Procedure
First save the newly created promotion and then maintain the promotionin "Change" mode.