Diagnosis
The attribute bundle can only be set once at the port and either italready exists or the variant key specified already exists for the portand the attribute bundle.
The attribute bundle is not added.

Procedure
This is a programming error.
You should inform your system administrator.

Procedure for System Administration
You should correct the programming of the graphics proxy.
You should make sure that

• An attribute bundle that is only permitted once at a port is only set
once using Add_Cu_Bundle
You can find the possible combinations of attribute bundles and portsin the documentation for the graphics proxy (= class thatoffers/implements the interface IF_GRAPHIC_PROXY)

• Unambiguous variant keys should be set using Add_Cu_Bundle only for the
port and the attribute bundle category.