Earlier this evening, I noticed that my copy of Outlook was showing as an “unlicensed product” at the top of the screen. That seemed strange, as I pay for an Office 365 Home subscription, which covers my family’s various copies of Office.

So, I took a look at the Office Account settings, and noticed that it wasn’t signed in to Office 365 for some of the connected sources.

I reconnected to My Office 365 subscription, signing in with my “Work or school account” as that’s what the markwilson.it Office 365 subscription uses, even though the Office 365 Home subscription uses a Personal Account (formerly known as a Microsoft Account):

After authenticating (and a restart), Outlook was no longer complaining about being unlicenced.

I’m not sure if it’s a complication of having both a Microsoft Account (MSA) and an Organization/Work and School (Azure AD) account with the same email address, but it seems there are various scenarios that can present this issue.

Thankfully this one wasn’t too hard to sort out!