Diagnosis
You use the posting period (field SPBUP) as one of theperiodicities for your planning scenario. You must specify the postingperiod using the fiscal year variant (field FISCVARNT).
No such entries currently exist in the list of assignments to infocubefields

Procedure
Goto maintenance for BW-specific settings at the planning level forplanning scenarios.
Refresh the scenario fields and assign the relevant infocube field tothe fiscal year variant field.