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I am trying to connect to a SharePoint online communication site which have MFA enabled, I tried running this command:

PS C:\WINDOWS\system32>  connect-pnponline "https://***.sharepoint.com/sites/***/"  -PnPO365ManagementShell -launchbrowser

where i will get a popup >> then i will enter the code >> enter username and password >> close the popup >> but I got this error:

WARNING: To sign in, use a web browser to open the page https://microsoft.com/devicelogin and enter the code D****9
to authenticate.
WARNING: Code has been copied to clipboard
connect-pnponline : Object reference not set to an instance of an object.
At line:1 char:2

Although I entered the above code and enter the username and password and confirm the MFA.

Anyone advice please?

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Try using this:

Connect-PnPOnline -Url https://contoso.sharepoint.com -UseWebLogin

OR

Connect-PnPOnline -Url https://contoso.sharepoint.com -PnPManagementShell -LaunchBrowser

-UseWebLogin

If you want to connect to SharePoint with browser based login. This is required when you have multi-factor authentication (MFA) enabled.

Source: Connect-PnPOnline

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  • there is no command named "-PnPManagementShell" – John John Jan 19 at 16:15
  • There is..it is given in documentation link (in my answer). However, to login with MFA enabled I have used -UseWebLogin before and it works. try using it and let me know if it works. – Ganesh Sanap Jan 19 at 16:19
  • you mean -PnPO365ManagementShell not -PnPManagementShell – John John Jan 19 at 16:21
  • if i use -UseWebLogin i will be login automatically,, but if i try to perform any action will get access denied ... – John John Jan 19 at 16:22
  • I mean -PnPManagementShell (See Example 12 given in above link). Also PnPO365ManagementShell is Alias of -PnPManagementShell. – Ganesh Sanap Jan 19 at 16:35
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As @Ganesh Sanap suggested, you may need to -UseWebLogin to sign in the MFA enabled account. And there is a new parameter -ForceAuthentication in the latest version of PnP PowerShell:

If this parameter is specified it will clear the cookies and you can log in with different credentials. This should prevent from auto-login.

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