SAP B1 only supports superusers who are Cloud Operators with Landscape visibility, including all databases and customers. For security purposes, we cannot offer superuser access to customers and partners that do not own their own Cloud Control Centre.
However, you may not need superuser access for the tasks you wish to perform. SAP B1 allows Power Users to modify all permissions and manage SAP database permissions. Power Users may be customers or partners – there is no limitation.
Power Users enjoy unlimited access to all modules and data. Please be aware that they can overwrite features like data ownership, as well.