🚀 go-pugleaf

Hi i am trying to add custom xmp data in a custom namespace in my indesign script. I have tried this through jsx and flex (patch panel) and still cannot get it to work.

the code
doc.metadataPreferences.createContainerItem('http://www.sendmyad.com/1.0/','email',0,ContainerType.BAG);		doc.metadataPreferences.setProperty('http://www.sendmyad.com/1.0/','email/*[1]','someone@sma.com');

no matter what i do the xmp is not registered.
I suspect this is because i dont have a registered namespace. If this is the case is there a way to register a new namespace. In dealing with the xmp core i have found it is easy to register a new namespace, but with the scripting library, i can find nothing.

Please help i have been researching for days and cannot find the solution to this matter.