Cause: system will not allow to save Sales order if unit of measure is not defined properly in item master. System will show error ‘The UOM Conversion for entered unit to std unit or vis versa not exists in master.’
Suggestion:
1) User should ensure that unit and unit (rate) are same for the specified record items in Item Master.
2) User should ensure that unit and Sales Unit/Purchase Unit are same for the specified record items in Item Master.
3) User should ensure that Unit is properly defined in Unit master