Diagnosis
You use the posting period (field SPBUP) as one of theperiodicities in your planning scenario. You must specify the postingperiod using the fiscal year variant (field FISCVARNT).
The list of assignments to infocube fields currently contains such anentry but it is not assigned to an infocube field.

Procedure
Goto maintenance for BW-specific settings at the planning level forplanning scenarios. Assign the relevant infocube field to the fiscalyear variant field.