A generated subscription has the following validation error message:

Unit Of Measure value is (UN:xyz) is invalid.

The preceding error occurs even though this unit of measure (UOM) value is valid and active in your site.

You have not mapped the preloaded UOM value of xyz back to itself within the UnitOfMeasureMap.csv file (Import Unit of Measure Mapping task).  Rather, there is only one UOM map for xyz, which maps to a separate, external UOM value.

To resolve the issue, create an additional UOM map to map xyz to itself.  Then, two maps will exist for xyz.

For example, the following would resolve this issue where the value C36 represents xyz:
 

After you add this mapping for the unit of measure value, the generated subscription activates successfully.

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