This post was most recently updated on December 27th, 2018.Reading Time: 2 minutes.
When trying to use some functionality, that relies on Unified Groups, you’re getting errors in the console, similar to this: “Unified Groups aren’t supported.” In truth, this most likely means, that Unified Groups (that’s the internal/technical name for Office 365 Groups) is not enabled for this particular user. That breaks a bunch of different features for them, since the Graph API for Groups of course won’t work. This post describes one way to fix this issue!
How to solve this?
There’s a fair chance this is caused by missing licenses. Try to access the account’s Outlook by browsing to this address (Office Web Access): https://outlook.office.com/owa/
If you get a result like this, you’re either missing a mailbox, or the license to use EXO (Exchange Online).
Office 365 Groups started as a feature in Exchange. Microsoft originally called them Unified Groups – kind of what you could see as simply glorified mailing lists. Their internal names in EXO PowerShell cmdlets, for example, still reflects this.
For more of the historical view on the groups, see, for example, this comprehensive article by IT Pro Today. Groups are nowadays so much more, but it’s useful to understand their background.
Owing to their background, they require certain EXO functionality from the users. Typically, they don’t actually require a mailbox, however! Try assigning the user a license, and Unified Groups (APIs at least) should be available to them, even if they don’t have an actual mailbox (not in the cloud, anyway).
After adding the license, it should work! At least it did for me.. :)
Possibly useful links:
He's been a developer from 2004 (starting with PHP and Java), and he's been bending and twisting SharePoint into different shapes since MOSS. Nowadays he's not only working on SharePoint, but also on .NET projects, Azure, Office 365 and a lot of other stuff.
This is his personal professional (e.g. professional, but definitely personal) blog.