SAP Message VSB261 - No unit of measure in transmitted item

Diagnosis
No (ISO) unit of measure was determined in the item. Entries for theunit of measure are expected in the IDoc in the segment/fieldE1EDP01-MENEE.

System Response
The item cannot be correctly processed without the unit of measure.

Procedure
You can specify the unit of measure using the function "Process Errors".However, the following must be observed:
Missing entries on the unit of measure is an error that has to beeliminated. Either your customer does not transfer units of measurecorrectly, or there are incorrect settings when transferring data fromthe EDI subsystem to the SAP IDoc interface (mapping).
If you specify a unit of measure with the function "Process Errors",this has to be a valid ISO unit of measure (for example "PCE"). Here,you must ensure that this is an example of the correct unit of measure,and that it is used for this material as either a base or a sales unit.