Go to https://app.hubspot.com.
If you don’t have an account, click “Sign up” to create a free HubSpot account.
Enter your email address and follow the on-screen steps to complete registration.
If you already have a HubSpot account, log in using your email and password, or sign in with your Google account.
In the left-hand sidebar, scroll down and click on Integrations >select Connected Apps.
Click on the “Private Apps” tab at the top.
Then click on “Create Private App” to start setting up your credentials.
Click “Scopes”, then “Updates” below scope
Note: These scopes are mandatory for HubSpot to enable proper integration.
crm.objects.contacts.read,
crm.objects.contacts.write,
crm.schemas.contacts.read.