Hello! The error AADSTS700016 indicates that the application identifier (Client ID) you’re using is not found in the Azure directory specified. This could be due to several reasons:
- Incorrect Client ID: Ensure that you’re using the correct Application ID as your Client ID. The Client ID should be in GUID format12.
- Wrong Tenant: Verify that you’re sending the authentication request to the correct tenant. The Tenant ID should match the one associated with your Service Principal1.
- Application Not Installed or Consented: The application must be installed by the tenant’s administrator or consented to by any user within the tenant2.
To resolve this issue, you can:
- Double-check the Client ID and Tenant ID in your code or configuration to make sure they are correct.
- If you’re unsure about the Client ID, you can find it under Azure AD > App registrations in the Azure portal2.
- If necessary, provide the Global administrator of your tenant with the admin consent URL to consent to the application2.
If after these checks the problem persists, you may need to reconfigure the application registration settings in Azure AD to ensure all details are correct and that the application has the necessary permissions. Remember, the Client ID and Tenant ID are sensitive information, so handle them securely.