Every message eWebinar sends, email notifications, SMS/WhatsApp, in-session automated chat messages, can pull fields from the registrant so it reads "Hi Sarah," instead of "Hi there,". eWebinar calls these merge fields.
How to insert a merge field
In any message editor (email body, SMS template variables panel, automated chat message, interaction text) click the {{ }} or Insert field button. A menu lists every field available for the current webinar. Pick one and eWebinar inserts the placeholder at your cursor.
What fields are available
The merge-field picker is context-aware. It shows:
- Built-in registrant fields:
first_name,last_name,full_name,email,phone_number,moderatorEmail. - Webinar/session fields:
webinar_title,start_date,session_time,duration,registration_link,watch_link,unsubscribe_link. - Custom registration fields: anything you added to the registration form on this webinar (company, role, industry, etc.).
- Interaction response fields: for interactions that capture data (Question, Poll, Quiz, Contact Request). Only available in notifications that fire after the interaction.
What happens when a field is missing
If a merge field has no value for a given registrant, e.g. you merged {{company}} but the attendee left that field blank, eWebinar renders it as an empty string, not {{company}}. To guard against that, write the sentence so it still reads well without the value, or use a conditional fallback like Hi {{first_name|there}}, (pipe = fallback).
SMS/WhatsApp is different
Twilio requires pre-approved templates for WhatsApp, so SMS/WhatsApp merging uses template tokens mapped to properties separately. See SMS template variables.
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