SAP Message AJ100 - Operand &1 is season-based, but no season has been defined

Diagnosis
When operand &v1& was defined using Transaction EA51, the indicator forseason demand was set. However, no season was defined when demand wasdefined in the facts for the rate, the rate category, or theinstallation.

System Response
Preprocessing of demand is terminated.

Procedure
Maintain a season period in the facts for the rate, the rate category,or the installation.