We sometimes create external users manually by adding them to a course using their email address. The user will then receive an email invitation containing a link that allows them to create their account and choose their own password.
Until they have completed the registration process, the user cannot be found in the users list for admins. However, they appear in the participant list of the course in which they were created.
What happens if the user never completes the registration? Will the invitation eventually expire or become invalid?
And is it possible to view a list of invitations sent to users who have not yet completed their account creation?