Document Data Prompt

Hello,
I am creating a PDF from using an xml file that is executed when a user prints the document selected.
All the data already exists in the DB and passing in the XML, however there are data elements that the user must provide on demand at the time the document is printed, is this possible in PP? how can accomplish that?
Thanks

Would be helpful to understand a little better your environment and from where your print the document, how is it converted into XML and at what point does the user need to enter on demand data.

I was thinking on maybe doing a dashboard using Connect that would show all jobs waiting on data on demand and have user do it from there. Once the proper data is entered for a document, then the document is released.