Contact Form Payload
This is a reference example, not something you Send from here — Coi is the caller, your server is the receiver.
Configure the target URL in the admin at System > Site Settings > "Codes and Scripts" tab > "Webhook for Forms", with the POST(JSON) mode selected.
POST mode: Coi sends every submitted field, plus pageTitle, as a JSON object in the request body (Content-Type: application/json; charset=utf-8). No placeholder syntax needed — the field names become JSON keys directly.
Fires once per successful form submission. No retry on failure.
