SAP Message XU003 - Quantity for unit & has too many places after decimal point

Diagnosis
The conversion of quantity in base unit of measure to quantity inalternative unit of measure resulted in a value with too many placesafter the decimal point.
You determine the number of places after the decimal point inCustomizing for units of measurement.

System Response

Procedure
Correct your entry or accept the default value that the systemsuggests.
If this error occurs often, it may be worthwhile increasing the numberof places allowed after the decimal point in the unit of measurement.