Hello, I hope everyone is doing ok. I'm trying to automatically set item serials when creating an item fulfilment through a client script but I can't set them. I've tried using CurrentSubrecord.selectNewLine - CurrentSubrecord.insertLine but I get the error saying they're not supported on current subrecord. Is it possible to do it?

I think you might need to go one more level down. I don't remember the exact code, but that's considered like a _sub_subrecord