SAP Message VL381 - Conversion into stockkeeping unit for batch & in item & is set from matl

Diagnosis
Conversion of the proportion / product unit into thebase unit of measure or thestockkeeping unit cannot be calculatedusing the classification for the batch.

System Response
Conversion of this unit of measure in to the stockkeeping unit is setfrom the current planned value of the material.

Procedure
Check the classification of the batch.