When using the Get a form by its unique ID endpoint, I was able to see that it returns back my form progressive fields. To help further troubleshoot this, could you share with me your:
1. Portal ID
2. Form Guid
Additionally, could you elaborate further the meaning of not being able to send cookie in the API?
Well I guess that to retrieve progressive fields for the user, I may need to send the cookie associated to that user so HubSpot knows the form has already been sent once by him, no?