SAP Message AJ565 - Unit of measurement &1, time &2-&3: Error in usage factor

Diagnosis
An error occured while you were determining the usage factor for theunit of measure &V1& for installation &V4& for the period &V2& to &V3&.
The previous message contains the exact cause of error.

System Response

Procedure
If you cannot find a solution to the problem using the errordescription, please contact SAP.