So have a weird issue here with Word (2013) and Letter Writer (GP 18.2)
I took a standard vendor letter, credit request, and added a footer with "Secret vendor code" as text and the vendor name as a GP field.
Works fine when I display it on the screen
As soon as I hit print, it drops the field and shows the code instead
Even funnier, when I cancel out of print, the field is just displayed with no data.
Has anyone else come up with a workaround for this?