SAP Message V1297 - Quantity could not be converted from &1 to &2

Diagnosis
You have tried to carry out a quantity conversion from &V1& to &V2& forweight determination, because a different sales unit is defined for thegross weight in the material master record.
This was not possible.

System Response
The system uses the net weight 0 for calculation.

Procedure
Maintain the conversion factors of the weight units in the system.

508435Incomplete pricing for NF metals
788436Unable to create sales orders for material with NF metals
837230Unable to save sales order containing NF metal as line item