Meeting IDs areautomatically deleted30 days after the scheduled date or the date last used, and are removed from thePrevious Meetingspage in the web portal. This is the same effect as manually deleting the meeting. Registration reports are also deleted with the ID, although Polling reports will be available for up to 12 months.
Similarly, if you delete a meeting from yourMeetingslist in the web portal, you cannot generate reports for that meeting. Any reports you generated before deleting the meeting are still available.