Property &1 is not allowed for inspection object type

What causes this issue?

You are trying to set the value of property &V1& for the inspection
document. The property &V1& is not permitted for this inspection
document. Available properties are listed in the definition of the
inspection object type.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.