Unable to load preview power apps portal sync configuration page.

[praneshJ]

Hello Experts,

I have a power apps portal application, recently I have created a web page and I wanted to add List as well as Form component on that newly created page.

but when I landed on the below page to do so, I ran into something like "Unable to load preview" message, Please refer the below screenshot

please let me know how to get rid of this issue.

any quick solution on this is really appreciable.

Best Regards,

Pranesh

[MarkBiggerstaf]

Hello Panesh,

Sorry to hear you are having issues with loading the Portal Studio.  These issues are typically browser settings or sometimes firewall settings.

You can try accessing the Portal Studio using a different browser in-private / incognito mode to see if that helps.  Other option would be to try accessing outside your network.

I will provide some links that have general mitigation you can try.  If you are still blocked, I would recommend opening a support case for investigation.

Troubleshooting startup issues in PowerApps Web Authoring (microsoft.com)

Issues on Internet Explorer & Microsoft Edge (MSAL.js) - Microsoft identity platform | Microsoft Doc...

Troubleshooting startup issues for Power Apps - Power Apps | Microsoft Docs

Thanks,

Mark Biggerstaff

Dynamics Support

[RPollard · Accepted solution]

I had this same issue in Chrome with my trial account and my test Starter Portal. When I allowed third party cookies from https://make.powerapps.com/  the issue was immediately resolved. I hope this helps.

[OliverRodrigues]

sometimes this can be caused by extensions installed in the browser.. try on an in-private session or temporarily disabling any browser extensions 

[Saeeds]

Hi ,

I got same issue. I have checked my browser allowed third party cookies and i also tried my portal link in my mobile but same issue. nothing is working for me excepting seeing Unable to load preview power apps.

Anyone please help?

[Hari555]

Even we are facing the same issue, enabled cookies etc as mentioned but still getting "Error displaying preview".

Please suggest what to do.

Regards

[ragavanrajan]

Hi @Hari555 

This is an old thread. Appreciate it if you can raise a new thread to avoid confusion.