I'm glad that it works now! Best, Regina

Thanks. Have you checked the undoable scope in your addin? In ARCHICAD 20 this error code is returned if there is no undoable scope and you call a function which needs undoable scope. You can check it in the Property_Test example.

Hi, Which version of ARCHICAD are you using? I think the problem will be that this function must be undoable and it wasn’t called from an undoable scope. Please check it in your code! Best, Regina

Hi, I asked about it from one of my colleagues. Now there is no detailed documentation about this XML creation and the recommended way to use it is that to save the XML from the ARCHICAD. Is there any specific reason why you would like to create this XML from your code? We w...

So is there any question in what you need help, or you've solved the original problem and it works now?