How to use a webhook to send form data to another Marketo instance?

Hi,

We have a smart campaign, "test send to instance", that is triggered based on fill out form = test_form. Under the flow tab, we added Call webhook where webhook = "webhook_send". Under the schedule tab, campaign status is active and Run each leave through the campaign flow = every time.

The goal is to send data from one Marketo instance (foo_instance) to another one (bar_destination) through the webhook_send securely after the form has been submitted. We were able to load test_form onto a web page and are able to see the data come into foo_instance successfully and when we view the Activity Log we can see the webhook_send being triggered with no errors. However, when we go to bar_destination instance, we do not see the lead created or updated.

How would we use the webhook to send data from foo_instance to bar_destination?

Webhook:

Template does include the following:

1. firstName
2. lastName
3. email
4. munchkinId (from bar_destination)
5. formId (from bar_destination)