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Attempting to generate a Bulk Enrolment Token returns blank browser window

Why does clicking Generate for the Bulk Enrollment Token do nothing or return a blank screen?

Clicking Generate does nothing or returns a blank browser screen after Microsoft sign-in because the URL you opened PowerSyncPro from does not match the Redirect URI configured in your Entra ID App Registration. To resolve this, access the PowerSyncPro server console using http://localhost:5000 and ensure that URI is registered as a Single-page application Redirect URI in your App Registration.

When generating the Bulk Enrollment Token in your tenant to support Entra join of your devices:

1-GetBPRT

2-GetBPRT

 

What symptoms indicate a Redirect URI mismatch?

A Redirect URI mismatch produces one of two symptoms. When you click Generate, one of the following may occur:

  • Nothing happens.
  • You are taken to the Microsoft authentication page.

3-MSFTAuth

 

but after Sign in, you are returned with a blank browser screen:

4-BlankWindow

 

This will happen if the URL you have started your configuration from in PowerSyncPro does not match

What causes this behaviour?

The Redirect URI in your App Registration.

5-UrlExample

How do you fix the Redirect URI mismatch?

Verify that the URL you use to access PowerSyncPro is registered as a Redirect URI in your Entra ID App Registration. To check or update the Redirect URI, navigate to:

App Registration > Authentication > Platform configuration > Single-page application > Redirect URIs

6-AppRegRedirect

 

Connect to the PowerSyncPro server console using http://localhost:5000 to perform your initial configurations, and ensure this URL is registered as a Redirect URI in your App Registration. If your installation uses a different port, refer to your installation documentation for the correct default URL.

  1. Sign in to the Azure portal and navigate to Azure Active Directory > App registrations.
  2. Select the App Registration used for your PowerSyncPro integration.
  3. Go to Authentication in the left-hand menu.
  4. Under Platform configurations, locate the Single-page application section.
  5. Click Add URI and enter the exact URL you use to access the PowerSyncPro server console (for example, http://localhost:5000).
  6. Click Save.
  7. Return to PowerSyncPro and attempt to generate the Bulk Enrollment Token again.

 

7-PSPURL