The remote server returned an error: (403) Forbidden

Hi. I've just signed up and are testing the trial of SharePoint forms. I've successfully added the Plumsail Forms app to a select SharePoint site (it is a site that was created via an MS Team being created). I've downloaded and installed the Plumsail Forms Designer however when I launch the designer and provide the URL to the specific SharePoint site I get the error "The remote server returned an error: (403) Forbidden.".

Any ideas to resolve?

Hello @aocallaghan,

This is a network issue. This might be a proxy or a firewall issue.
Please make sure this domain https://forms.plumsail.com/ is added to the allow list in your network settings or try a different network.

Hi Margo. No proxy required and no firewall settings getting in the way. I've just tried it from another computer on the same network and it connects OK. I did notice that on the computer where it's not working you can see where the Plumsail Designer should prompt for authentication, but it doesn't and then shows the forbidden error. On the computer where it does work the authentication appears OK and you can provide the O365 login creds.

Dear @aocallaghan,
Can you post some screenshots? Normally, you should be able to log out either way. For example, on my PC I am also getting this error:

But after I try to connect for a second time, I am able to switch to another account:

That's because I am using multiple accounts and tenants, the experience should be smoother in the majority of cases.

Hi

For a second or two you can see the following:

Then it changes to:

We do have multiple accounts and tenants, however Plumsail is being trialed with just one of them. I've tried connecting multiple times but get the same result each time.

Cheers
Adam

Dear @aocallaghan,
When you see this screen, press Sign out and try to connect again, you should be able to use a different account:

Hi. I already tried that a few times quickly before it changes to the forbidden message but it didn't have any affect.

Dear @aocallaghan,
Please, try the following approach - Troubleshooting Plumsail Forms for SharePoint Online in Microsoft 365 — Plumsail SharePoint Forms Documentation

Hi. Sorry. Still does the same. I deleted the 'SPDesigner.exe.WebView2' folder from within the apps folder then relaunched the designer, entered the SharePoint site URL, hit enter, then very quickly clicked on the 'Sign Out' link at the bottom of the window. As soon as I click the 'Sign Out' link it immediately returns to the 'The remote server returned an error: (403) Forbidden.' error.

I tried it a number of times ensuring that the 'SPDesigner.exe.WebView2' folder was deleted between each attempt.