Message SAP WU351 - Conditions can only be created in the 'Change' mode for the promotion

Diagnosis
You are currently in "Create promotion" mode. However, creation ofpromotion conditions is not permitted in this mode, as no promotionnumber has yet been assigned, or the promotion number you entered hasnot yet been saved.

System Response
Creation of promotion conditions is blocked.

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