Hello @Tom Ridges from Herdify,
Thank you for posting your query on Microsoft Q&A.
Based on your description, it appears you are encountering error code AADSTS650056 when attempting to run a test from HubSpot.
Upon checking the API permissions for the application in Entra ID (Entra ID >> App Registrations >> HubSpot >> API Permissions), you noticed that the app has the Azure AD Graph API, which is deprecated.
Since Azure AD Graph APIs are deprecated, it is recommended to use Microsoft Graph API instead. At a minimum, you should have the Microsoft Graph User.Read delegated permission configured on the app registration for both the client and resource. Please try adding the Microsoft Graph API and ensure that all permissions for the application are granted admin consent.
For more details, please refer to the following document:
AADSTS650056: Misconfigured application.
I hope this information is helpful. Please feel free to reach out if you have any further questions.
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Thanks,
Raja Pothuraju.