Hey @dianacch ,
Are you including the proper authentication with your requests to the HubSpot API? Each request requires either an API key (included as a query parameter, like this: `&hapikey=xxxx`) or an access token (included in the `Authorization` header, like this: `Bearer xxxxxxx`). If you have some more details about the requests that are failing, please don’t hesitate to post them here (without any sensitive authentication details) and we can help troubleshoot what’s going on.
You can find some more details on authentication here: Accounts Dashboard | HubSpot