Creation of campaigns/contacts does not trigger the Weebhook
Hi, I'm researching HubSpot on integration issues. I have a requirement that consists of linking an event to a weebhook (creation of campaigns and contacts).
I did the steps "jackcoldrick " mentions and got to the point where I get the code. However when I want to paste the url https://api.hubapi.com/oauth/v1/token from postman I get this error.