You are not authorized for class type &

What causes this issue?

You want to use class type &V1& but are not authorized for this
class 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?

Ask your system administrator to give you authorization for this class
type, or ask an authorized person to carry out the function for you.

Error message extract from SAP system. Copyright SAP SE.