Calendly (bookings)

Step 1 - Add a booking question for the code

Add a required question like “Referral / discount code” so the customer can enter the ambassador’s code.

1. Calendly → Event Type → Edit.
2. Questions → Add a question (short answer).
3. Name it “Discount code” or “Referral code” and mark it required.

This value is what you’ll post to Refer Labs to credit the correct ambassador.

Step 2 - Post confirmed bookings as conversions

Use Zapier/Make to trigger on “Invitee Created” and then POST to Refer Labs with the collected code.

Conversion endpoint

POST https://referlabs.com.au/api/discount-codes/redeem
Headers:
  Content-Type: application/json
  x-pepf-discount-secret: <YOUR_SECRET>
Body:
{
  "discountCode": "CODE_FROM_BOOKING_QUESTION",
  "orderReference": "CALENDLY-INVITEE-UUID",
  "amount": "0.00",
  "metadata": {
    "platform": "calendly",
    "eventType": "Initial consult"
  }
}

If you collect payment later (invoice/Stripe/Square), you can post the paid amount then instead.