Hi Per,
This would be an enhancement, would you mind opening this as an idea? But to answer your question, currently, we send 2 attributes to IPP, job-name and document-name. We do not pass in any variables as we do with data streams such as with datasets or FTP. If you would like to pass in variables, which attribute do you need? document-name or job-name? And which variable(s) were you looking to pass in?
As with dataset creation, those variables are needed to create the proper dataset. I was curious about your use case. Why did you need to pass in a variable to an IPP print attribute as this would be going to a printer?
Thanks!
Ed