Error: Hub Is Unknown to This Hublet, but It Appears To Exist in Hublet eu1

Issue

After migrating my HubSpot instance from the US data center to the EU data center, re-authentication fails with the following error:

Hub is unknown to this Hublet, but it appears to exist in Hublet eu1.

Environment

Connector: HubSpot

Resolution

When you migrate your HubSpot instance to another data center, the authorization URL used to access your account changes. For example, if you migrate from the US data center to the EU data center, the authorization URL https://app.hubspot.com/oauth/authorize... changes to https://app-eu1.hubspot.com/oauth/authorize....

To ensure we utilize the correct URL during our authorization attempts, wait until your migration to the EU data center is complete, then do the following:

1. Create a new OAuth 2.0 app in HubSpot. See HubSpot's OAuth documentation for more information.
2. Go to the Setup tab on your connector details page and click Edit connection details.
3. Click Re-Authorize Connection.

NOTE: See the Select HubSpot account step for step-by-step instructions on how to re-authorize your connection with HubSpot.