Unit of measure group does not exist

What causes this issue?

The unit of measure group that is maintained in the material master does
not exist in Customizing or the unit of measure group you attempt to
enter in the material master maintenance is not defined in Customizing.

How to fix this error?

Check your entry or maintain the unit of measure group in Customizing:
<ZK>Industry Solution Oil & Gas (Downstream) -> HPM (Hydrocarbon
Product Management) -> Oil- and Gas-Specific Units of Measure and
Additional Stockkeeping Units -> Define additional stockkeeping units of
measure</> (Transaction O586) .

Error message extract from SAP system. Copyright SAP SE.