No authorization

What causes this issue?

You are not authorized to perform this activity.

System Response

The system cancels the activity you have tried to perform.

How to fix this error?

If necessary, you can maintain <DS:CHAP.SIMG_CMMENUOHP0UB>missing
authorizations</> in Customizing. Please remember that both the
standard authorizations and the structural authorizations are checked.

Error message extract from SAP system. Copyright SAP SE.