The unit of measure specified is not allowed for this material

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Choose a valid unit of measure.
Note
To check which units of measure are allowed for the material, choose
<LS>Extras</> -> <LS>Units allowed</>.

Error message extract from SAP system. Copyright SAP SE.