There is no function to display the actual rights of any object in the user administration. It is not possible to easily find out on which databases, search classes, etc. an individual is accredited. This information can be exported through the CubeDesigner but the exported XML cannot be read easily.
More information will follow shortly.
A few related comments or suggestions:
Displayed WinCube message / error in does not always make it easy to identify the missing right(s). Where possible the category, name as well as uuid of the access rights object should be displayed each time to support troubleshooting
Rights Wizard (already in Business Studio?) including final Review step that displays the actual access rights and selected org elements allowed or denied
APP - Menu bar/toolbar rights and other GUI elements could be inherited/allowed based on assignment of the corresponding functional right