How to fix “- – the web site does not support SharePoint Online credentials. The response status code is ‘Unauthorized'” error

Reading Time: 4 minutes. Table of Contents Description of the issueSolutionExplanationMore info This post was most recently updated on July 11th, 2018.While running some SharePoint Online -PowerShell commandlets, or connecting to a SharePoint Online site from your app, you get a following (or similar) error about your SharePoint Online credentials being unauthorized for something you should definitely be authorized to do: Cannot contact web site ‘https://<tenant>-admin.sharepoint.com/’ or the web site does not support SharePoint Online credentials. The response status code is ‘Unauthorized’. And that’s not all – by digging … Continue reading How to fix “- – the web site does not support SharePoint Online credentials. The response status code is ‘Unauthorized’” error