SAP Message VAL206 - Settings for special valuation are inconsistent

Diagnosis
You are valuing a position in valuation area &V1&, accounting code &V2&
, ID number &V3&, securities account &V4&. The system is attempting torun a special valuation for this position because the table for specialsecurity prices contains an entry for this position for the evaluationkey date.
However, the entry in the table for special security prices isinconsistent. Either no category was stored for the special valuation,or there is no currency for the special price.

System Response
The activity is canceled.

Procedure
Correct the data for the special valuation.