My Retell AI agent books appointments via Cal.com API. Only the admin (calendar owner) gets booking notifications, but the customer gets nothing. Plus the email field in Cal.com is empty - only shows first name.
Current Flow:
Retell call → captures customer email as dynamic variable → books on Cal.com → logs to Google Sheets → only admin gets notified
The Issue: I don’t think Retell is passing the email dynamic variable from the batch call/Google Sheets back to Cal.com during booking. The Cal.com booking only shows the customer’s first name, email field is empty.
Need:
Customer confirmation emails and reminders using the email captured in Retell dynamic variables/batch calls and logged in Google Sheets.
Questions:
1. How to pass email dynamic variable from Retell/Google Sheets to Cal.com during booking?
2. Should I trigger customer emails separately through n8n using the Google Sheets data?
3. Best way to handle reminder sequences when Cal.com doesn’t have the customer email?