Journeys can be triggered by sending a POST request to the provided Webhook Endpoint URL with the following payload structure:
The email address of the customer
Metadata to be attached to the customer's journey session metadata
The customer must already exist in your site account, which means there must have been a previous interaction, such as a previously identified cart or browse session, being added to a list, etc.
When cloning a journey, a new explicit Webhook Endpoint URL will be generated.