The source ID is captured when an attendee selects the URL link in an email message from a vendor who has been assigned a source ID.

After a webinar is complete, the host can generate an attendance or registration report showing each attendee's source ID.

You can add up to 50 invitation sources to a webinar.
1

After you schedule your webinar, click Add in the Invitation sources section.

2

Under Contact for invitation source, add the email address of the vendor or contact. This is who will forward your email messages to attendees.

3

Under Source ID, enter the source ID for this vendor or contact.

You can use any combination of letters, numbers, or special characters for the source ID.
4

Click Send invitation to contact.

The email address and source ID appear in the Previous source IDs list so you can copy them to future webinars after you schedule them.
5

After you add all your Source IDs, click Close.

Add more source IDs later by selecting your webinar and selecting Edit under Invitation sources.