SAP Message USMD1181 - &1: No authorization for hierarchy of entity type &2 for activity &3

Diagnosis
Checking the settings for the authorization object USMD_MDATH showedthat you are not authorized to edit the hierarchy.

Procedure
In transaction PFCG, check which authorizations are configured for youfor the authorization object USMD_MDATH.

Procedure for System Administration
If you want to edit the hierarchy, your system administrator must assignyou the relevant authorization