Class Notebook Add-In Not Loading

Question

Yesterday Teams Class Notebook allowed the school to distribute pages through OneNote to individual students. Today, the Class Notebook tab has disappeared. On closer inspection, it appears the Class Notebook add-in is encountering a runtime error and refuses to load. I have reinstalled the add-in, attempted a repair at app level and a whole Office 365 level but the add-in will not load and the Class Notebook tab does not appear, stopping us from distributing work to students. The issue has been replicated across the school site and on devices outside our network. We currently unable to use our normal way of working for Teams.

Answer 1

Thank you. Yes all sorted now.

Answer 2

Hello Mr_DBell,

Here is an update:

This issue was posted to the Service Health Dashboard (SHD) as incident MO892378 starting at **** Tuesday, September 17, 2024, at 9:41 PM UTC. The user experience of this incident is: Users couldn't access the Class Notebook tab within one or more apps.

More info: Users reported that the problem could have been seen within OneNote for the web, Microsoft Teams for the web, or both.

Now Service Health Dashboard (SHD) shows this incident was resolved at Wednesday, September 18, 2024, at 8:22 PM UTC.

If you are still experiencing this issue and you don't see an Service Health Dashboard post from Microsoft 365 Admin Center, it may indicate either a scoping issue or an independent problem. I recommend you raise a support ticket too, the related team will help you investigate this from back end and find the root cause. This would be the most efficient way in handling this case for you.

Thanks for your time and cooperation. Hope you have a nice day!

Best regards,

Tina

Answer 3

Thank you. Reported.

Answer 4

Hello User,

Very sorry for the inconvenience caused by this issue.

We received similar reports from other customers, they also met the issue about the Class Notebook toolbar disappeared from Class Notebook in Teams. It worked yesterday and just stopped working from today.

Consider that it worked before, now different users from different tenants are experiencing this issue, I'm afraid it may be a temporarily server-side issue which needs to be investigated and fixed by the back-end support team.

In this situation, I sincerely recommend you raise a support ticket by following steps in this article, report this issue to Microsoft Online Support Team:  Get support - Microsoft 365 admin | Microsoft Learn

The more reports they receive from different users, the more likely they will be able to find something affecting users in common, do investigation and fix it soon.

Note: To create a support ticket, you need to have Microsoft 365 admin privileges, and if you're not an admin for your Microsoft 365 organization, please contact the admin of creating a new ticket.

Reference: How do I find my Microsoft 365 admin? - Microsoft Support

Please accept my apologies for redirecting you to the related team support, as the moderators in this community have limited resources to verify the backend information and to get the quick and better assistance, we requested for this.

Your understanding and patience will be greatly appreciated. 

Sincerely,

Tina | Microsoft Community Moderator