SharePoint is not broken - it just does't work

(Literally) Breaking: Changes to app authentication on SharePoint! 😵

This article explains how to get rid of sudden and unexplainable 401 Access Denied errors when trying to authenticate against a fairly fresh Microsoft 365 / SharePoint Online tenant. This issue seems to be caused by a long-ish project to finally retire ACS – Azure Access Control service) on SharePoint (it’s retired everywhere else already!) Note: This is an updating story, as the situation with ACS is definitely… Developing. Yeah, let’s call it that. It’s a developing situation. Problem In the beginning of September, a…Continue reading (Literally) Breaking: Changes to app authentication on SharePoint! 😵

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How to remove your account as a guest in another Azure AD tenant?

This article explains how to fix your account, whenever it gets completely FUBAR due to your account being added as a guest in another AAD organization. And this might happen in multiple different situations – my most typical woe is Visual Studio’s Cloud Explorer, which stops showing me my subscriptions due to authentication against the other organizations failing. Add some extra difficulty by having someone in the other directory block your account from signing in, and you can’t even remove the account by any usual…Continue reading How to remove your account as a guest in another Azure AD tenant?

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Is Lifetime Spotify Premium a scam?

This article describes another fishy online offering, Spotify Premium Lifetime subscription. Long story short, it’s a scam, just not a very heinous one. Depending on the calibration of your moral compass, it might even be worth it, although definitely not recommended. Let’s take a closer look at what’s going on with this criminal affair, then! A while back, I wrote an article about cybercriminals stealing your money and your data, if you buy an “Office 365 Lifetime subscription”. Just for the record: it’s not a…Continue reading Is Lifetime Spotify Premium a scam?

Azure Active Directory, the advanced logo

How to fix “AADSTS50011 – The resource principal named was not found in the tenant”

Another day, another variant of AADSTS50011! With a lot of apps and web services using Azure Active Directory for authentication, you’re bound to run into issues, right? Ah well, one would hope to avoid them. But at least this one is usually easy to fix! Problem I’ve encountered 2 different variants of this particular issue – the error message may or may not contain the name of the principal it’s looking for, and the guid of the tenant it’s looking for the principal in. AADSTS500011…Continue reading How to fix “AADSTS50011 – The resource principal named was not found in the tenant”

AADSTS50196 error message

How to fix error AADSTS50196 on Microsoft web properties?

This article explains how to fix error with error code AADSTS50196. This issue usually comes up with an error message somewhat like “The server terminated an operation because it encountered a client request loop.” The error seems to be popping up more and more often. No worries – it wasn’t caused by you! It is, in fact, an unintended side effect of a security hardening feature in some browsers, and some outdated configuration on Microsoft’s end. Obviously, you could run into the issue on other…Continue reading How to fix error AADSTS50196 on Microsoft web properties?