SAP Message /NFM/CA554 - NFK &: Rate unit & cannot be converted into base unit &

Diagnosis
A rate was found for NF key &V1&. The rate refers to a quantity in theunit of measure &V2&. This unit of measure cannot be converted into thebase unit of measure &V3&.

System Response
No rate can be determined for NF metal &V1&.

Procedure
Change your Customizing settings so that the units of measure can beconverted in both directions.