SAP Message WB027 - ISO code & is assigned to more than one unit of measurement

Diagnosis ISO code &v1& is assigned to more than one unit of measurement. Thesystem is, therefore, unable to determine a unit of measurementautomatically. System Response When the assortment list IDoc is generated, all units of measurementhave to be converted to ISO codes. These ISO codes are then convertedback to the units of measurement when the assortment list is checkedinto version management. If a 1:1 conversion is not possible, the wrongunit of measurement might be selected. Procedure Ensure that each ISO code is only assigned to one unit of measurement.