Expiration period for email invitations for additional authorized users

On shinyapps.io, when authorized users are added to an application by entering their email addresses, that email invitation will expire after 7 days and will be deleted 21 days after creation.

For example, on one particular application, you may see that invited emails are "Invited (Expired)" or missing. If they are missing, the user could have accepted it or waited past the 21 days and the invitation has now been deleted.