Mass update in few steps saving your time going into each attendee profile one by one.
Step 1: Export and Download CSV file of Current Attendee List
On Attendee List page, select segment and click "Export Current List" button to download Excel (.xlsx) file which includes Attendee IDs generated for each attendee automatically.
2) If you want to add new attendee records, please use "Import" function instead.
Step 3: Save excel file As CSV
Save Excel file as UTF-8 encoded CSV. Click here to view other instruction in converting to UTF-8 CSV file format.
Step 4: Use bulk update to upload the CSV file
Upload the CSV file and system'll use Attendee IDs to map the attendees' records to update changes.