Hi @Michael Minto
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You are trying to create a Link Connection between your source SQL database and target dedicated SQL pool. However, you are encountering an error message stating that “Only active directory users can impersonate other active directory users.” This error happens because the operation requires an Active Directory user account to perform the necessary impersonation for the Link Connection.
To resolve this, first, ensure that the user account you are using to create the Link Connection is an Active Directory user with the necessary permissions. Next, verify that the Active Directory configuration is correct, and that the user has the required impersonation rights. Finally, refer to the Azure Synapse Link documentation for any specific requirements or troubleshooting steps related to AD user impersonation.
By following these steps, you should be able to address the error and successfully create the Link Connection.
Reference
https://video2.skills-academy.com/en-us/azure/synapse-analytics/synapse-link/troubleshoot/troubleshoot-sql-azure-active-directory#symptom
https://video2.skills-academy.com/en-us/azure/azure-sql/database/logins-create-manage?view=azuresql
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