I'm attempting to create a lead in Salesforce from a Marketo form and have set up a webhook as outlined in this post but it is still not posting to Salesforce. Any suggestions? This is currently directed towards a Salesforce sandbox instance. https://nation.marketo.com/t5/product-discussions/send-lead-data-from-mkto-to-sfdc-web-to-lead-form/...
Marketo support confirmed the webhook is being called correctly. Webhook details: