If you are trying to invite a user to your shinyapps.io account and they receive a message that the invitation has expired, there are a few things to keep in mind.
Check the Invitation Timeline
Invitations sent to new users expire after 7 days and are deleted after 21 days. If the user is trying to accept an old invitation, you'll need to send a new one. More information on user management is available in the guide here: https://docs.posit.co/shinyapps.io/guide/authentication_and_user_management/.
Re-invite the User
If you've already tried re-sending the invitation and the user is still getting the "invitation expired" error, try this instead:
- Remove the existing invitation entirely.
- Then, send a new invitation to the user.
If you are still experiencing issues or if you have any other questions or concerns, please open a support ticket.