Hi there,

Unfortunately the live form on our website doesn't work with "pull from external form" feature in marketing hub. Probably that's because the form uses some JavaScript to submit. Somehow with HubSpot we're successfully pulling leads from that form. It's about the form at the bottom of our home page:  https://businessartservice.nl/ (.newsletter-form). 

Unfortunately I'm not able to push them from the server side manually. Is it possible to push leads manually to Marketing Hub using JavaScript? In fact, it must be possible as the auto generated script is pushing them from client-side as well. Is there any documentation of the public API that can be used from the client side that does not require an API key?