Step-by-step live demo of how to create Azure App Registration and query Microsoft Dataverse tables over HTTP POST to the CRM Dynamics 365 endpoints. Key steps include:
- Create Azure App Registration with Client Secret
- Grant delegated Azure App API permission “Access Common Data Service as organization users”
- Grant same Azure App GUID permission in PowerApps Admin Center
- Grant “Service Reader” for target PowerApps Environment
- Execute login HTTP POST to gain “access_token”
- Execute query HTTP POST to gain JSON Dataverse table rows
Cheers

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REFERENCES
- https://giangpham.io/blog/acquiring-an-oauth-access-token-from-dynamics-365-crm-online/
- https://community.dynamics.com/365/f/dynamics-365-general-forum/317299/dynamics-365-oauth-for-webapi