I am trying to create a Code 128 barcode in a LaTeX document, and want to create it based on one of the fields I am using in the
but am receiving
The input token "\MailId" is not included in Code 128 table, will ignored.
And, true to its word, I get an empty barcode. I can't figure out if I need to “escape” it somehow? Just a line or two before, I use this same field to grab an image by that name, so I know (believe?) it isn’t null.