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I am using following commands to connect to my SharePoint Online environment.

  1. Connect-SPOService -Url "https://testdomain.sharepoint.com/sites/test1"
  2. Connect-PnPOnline -Url "https://testdomain.sharepoint.com/sites/test1"

In an ideal case this command should connect me to the site collection. I have verified that I am using correct UserName and Password.

But instead I am getting following errors

For command 1:

Connect-SPOService : Could not authenticate to SharePoint Online https://testdomain.sharepoint.com/sites/test1 using OAuth 2.0 At line:1 char:1 + Connect-SPOService -Url "https://testdomain.sharepoint.com/sites/test1" + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [Connect-SPOService], AuthenticationException + FullyQualifiedErrorId : Microsoft.Online.SharePoint.PowerShell.AuthenticationException,Microsoft.Online.SharePoint.PowerShell.ConnectSPOService

For command 2:

Connect-PnPOnline : The remote server returned an error: (403) Forbidden. At line:1 char:1 + Connect-PnPOnline -Url "https://testdomain.sharepoint.com/sites/test1 ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [Connect-PnPOnline], WebException + FullyQualifiedErrorId : System.Net.WebException,SharePointPnP.PowerShell.Commands.Base.ConnectOnline

Unusual behavior: When I am running below command. 

Connect-PnPOnline -Url https://testdomain.sharepoint.com/sites/test1 
-PnPO365ManagementShell -LaunchBrowser

i.e. with parameters "PnPO365ManagementShell" "LaunchBrowser", it works perfectly fine. I am not sure what's wrong.

Similar behavior Also I have installed the nuget package for SharePointPnPCoreOnline v3.1.1809 in my Provisioning solution. So when I am running my provisioning code I get same error while establishing connection.

Last thing: When I use same commands from other VMs or colleagues machine with same Creds, it works perfectly fine. Means something is wrong on my machine.

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  • 1
    did it use to work earlier and after a couple of days stopped working ? or it was always broken ?
    – Gautam Sheth
    Feb 1, 2019 at 11:07
  • Yes it used to work earlier on my projects and machine. Then I was on On-Prem project for 7 months. Since Oct2018 its the problem..Now I got chance to post it on SP.SE
    – Asad Refai
    Feb 1, 2019 at 11:10
  • @GautamSheth there were many failed windows upgrades on my local system. Could these be a problem? Although I got that all clean now, but still same issue.
    – Asad Refai
    Feb 1, 2019 at 11:11
  • can you try Remove-PnPStoredCredential -Name https://tenant.sharepoint.com -Force and then try to connect again ? Looks like those creds got stored , this command might help
    – Gautam Sheth
    Feb 1, 2019 at 11:21
  • 2
    not sure, for command 1, would suggest that you connect to the admin site, i.e Connect-SPOService -Url "https://testdomain-admin.sharepoint.com/ because SPO commandlets only work with admin site urls
    – Gautam Sheth
    Feb 1, 2019 at 11:36

1 Answer 1

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This is what I use to connect myself to SPO (but also MSO,AZureAD, ...) :

$username = "[email protected]"
$password = "password"

$cred = New-Object -TypeName System.Management.Automation.PSCredential -argumentlist $userName, $(convertto-securestring $Password -asplaintext -force)

Connect-SPOService -Url https://testdomain-admin.sharepoint.com -Credential $cred 
#as said in the comments, you need to connect to the admin url of SPO
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