SAP Message VAL203 - For contract &1 at &2, no NPV can be determined with NPV category &3

Diagnosis
You wish to execute a rate valuation for a loan position. However, noNPV with NPV category &V3& exists in the system for contract &V1& up toV2.

System Response
The valuation step 'rate valuation' is terminated.

Procedure
For contract &V1&, up to &V2&, define a NPV with NPV category &V3&.