If you're not using English language settings, you'll need to code the field as:
{=MOD({={PAGE}-1};2)*INT({PAGE}/2) \# 0'A',,}

The \# is a numeric picture switch. See: Format field results - Microsoft Support

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Hey! Noticed the semicolon instead of the comma! What an annoying mistake! I spent hours to figure out what could be the reason of the error.....
Now, it works well.


Thanks for the link, I appreciate it.