

If you are trying to connect to, make sure you are providing (or whatever is appropriate!) but not “ ” in SharePoint Online. When you are working with multiple tenants, make sure the supplied credentials are matching the given URL.Your account may be MFA (Multi-factor authentication) enabled! If yes, either MFA must be turned OFF or you have to follow the methods described in How to Connect to SharePoint Online with MFA-enabled accounts from PowerShell?.Your saved password in the Windows credentials store could be incorrect or expired (especially when you use PnP PowerShell module Connect-PnPOnline to get credentials from the Windows Credentials store).Your password may be expired, or your account may be locked out or disabled.Check if you are able to log in using a web browser with the user name and password given in the PowerShell script. Your user name or password could be wrong (Obviously!).Here are the possible causes and solutions: This could happen in any PowerShell method like CSOM, SharePoint Online Management Shell, or PnP PowerShell. I’ve experienced this error in SharePoint Online PowerShell scripts a couple of times.

Problem: Getting “The sign-in name or password does not match one in the Microsoft account system” Error in SharePoint Online.
