Your user account or group membership must have the following permissions to delete a Data Connector Category unless your user account has the Make this user a Super Admin setting selected:
Data Connectors: Delete Data Connector Categories
Data Connectors: View Data Connector Categories
Data Connectors: View Data Connectors
See the Data Connectors permissions or ask your Administrator for assistance.
To delete a Data Connector Category, no Data Connectors can be assigned to it. If any Data Connectors are assigned to the Data Connector Category, its Delete icon