SAP Message VAL605 - The book value currencies are not the same as the position currencies

Diagnosis
You wish to carry out a manual valuation for the position on &V1&. Toenable this, book values must have been defined in the system as atV1.
Currently the book values are defined in a currency that is differentto the position currency and/or valuation currency.

System Response
The valuation is terminated.

Procedure
Define the book values in the position currency and in the valuationcurrency of the position.