andrew027:
My boss has some philosophical objection to Google Pay (her prerogative - I use it all the time since finally figuring out how to get rid of the "too many cards" error message) so she just has the emailed PDF saved on her phone and a shortcut to it on her home screen. I just clicked the link in the email. The pass was added to Google Pay and asked me if I wanted the home screen shortcut as well. Seemed to all work pretty quickly and easily.
Just curious how you fixed the "too many cards" error message, my partner has the same problem, she uses one of those wallet cases with her cards in it so I figure that's the problem.