can you try 'structuregroupID'@'structureID' ? I think this should be the right syntax but not 100% sure.
Tried several options, single quote, double qoute, no qoute, switching structuregroupID and structureID from position. That all did not work.
followed that trail and used the Identifiers in stead of the ID's and that did the trick.
Notation should be like 'structure group identifier'@'structure system identifier'
Thanks for the help!
yes that was what I originally meant when writing back yesterday. Sorry for the confusion