Quantity unit & is not a commercial unit (Please correct)

What causes this issue?

Unit of measure &V1& is not a commercial unit of measure.

System Response

The system only allows commercially recognized units of measure for
units of measure in the asset master record/asset class.

How to fix this error?

Correct the unit of measure.
You can use the F4 function to help you choose a commercial unit of
measure.

Error message extract from SAP system. Copyright SAP SE.