SAP Message VD348 - Date & is not valid with period & (missing fiscal year variant)

Diagnosis
You have not maintained a fiscal year variant in the material masterrecord.

System Response
You must first assign the necessary fiscal year variants to thematerial in the material master record in order to work with fiscalyear variant periodicity.

Procedure
Enter the required fiscal year variants in the material master record
If necessary, check whether the called application supports this periodindicator.