SAP Message RM181 - Error converting the creation unit of measure

Diagnosis
The specified unit of entry does not correspond to the base unit ofmeasure. The system cannot convert it to the base unit of measure asthe conversions factors have not been maintained in the material masterrecord nor has the unit of measure been defined in the Table containingthe unit of measurements.

Procedure
Either enter another unit of measure or enter the conversion factor inthe material master record.