The scope needed for this API call isn't available for public use

Developer Support APIs & Integrations
1

The scope needed for this API call isn’t available for public use

while calling https://api.hubapi.com/webhooks/v3/appIdd/subscriptions

2

Looks like you’re hitting this issue because the endpoint requires certain scopes that aren’t available in public apps. The quickest fix is usually switching to a private app in HubSpot - these support broader scopes and are simpler to manage internally. Alternatively, you could adjust your current app settings by checking exactly which scopes your call needs and ensuring they’re correctly enabled in your developer account.

3

Hey, @DIntegration6 Some endpoints require your Developer API key. This is one of them

You can find details on where to find it here.

Have fun building! — Jaycee