Message SAP WU354 - No number range interval is maintained for promotion type &

Diagnosis
No number range is assigned to the entered promotion type inCustomizing. At least one external or internal number range, or both,must be assigned to a promotion type.

System Response
If there is no number range for the promotion type, no new promotionscan be created.

Procedure
Maintain the number range assignment
in Customizing for the promotion type.