Keynote Collaboration invite not working for recipient on iPad
Hi, I've tried to invite someone via email to collaborate on a Keynote file. When they click the link on their iPad (that has Keynote installed), it opens a web page that says "This presentation is unavailable"
I've tried removing the invite, and re-inviting them, but the same results.
Any ideas on how to get it to work?
iPad Pro 10.5-inch, Wi-Fi