Hi Tilmann,
I did a test with BOBT and did some debugging. After the default determination of the root node was executed the framework loops at the determination list in //CL_FRW method do_determinations line 104. It first checks whether an association object is bound and creates an assert, because there isn't any between root node and subnode. Now my question: what kind of association is needed for a subnode in order to pass this check? I couldn' find any data about it. A screenshot of the coding in question is attached.
Thanks and regards,
Ulli