Requested tenant identifier ‘00000000-0000-0000-0000-000000000000’ is not valid. Tenant identifiers may not be an empty GUID Azure SQL Connection
Quick answer: The AADSTS900021 error with an empty tenant GUID can occur when Microsoft Entra authentication is used against an Azure SQL logical server without a properly configured Microsoft Entra administrator. Set or update the Microsoft Entra admin for the logical server, then reconnect using Microsoft Entra authentication. Error AADSTS900021: Requested tenant identifier ‘00000000-0000-0000-0000-000000000000’ is […]