If you need to to look up a registration and you have the attendee's basic information, you can perform a "Quick Search". This search can span across all events.
Using quick search
- Go to Reports > Quick Search
- Enter in the attendee's information that you have available
- Select the box "Search all events" to perform the search across all events
- Click "Search"
Once the search is complete, select the registration from the desired event to view and/or edit the registration.