Jean wants to use a webhook-triggered workflow to create new contacts in HubSpot based on data from Shopify, but the workflow enrollment requires matching an existing contact.

Camille confirms, referencing HubSpot documentation, that webhook-triggered workflows cannot enroll records that don't already exist in HubSpot with a matching unique property. Therefore, this method cannot be used to create new contacts directly. An alternative approach, like having the webhook call an intermediary service that uses the CRM API to create the contact, would be needed.