Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi 健井手上,
Since our forum is an English forum, could you please post in English?
Regarding the problem you mentioned, please try using Microsoft Teams web application or Microsoft Teams desktop application to check if the problem persists.
Meanwhile, try creating a new test Microsoft Teams to create an OneNote Tab. This can help us check if the problem is related to the specific Microsoft Teams.
Also, if you don’t want to post in English, please post your thread to our Japanese forum. Here is the link:
Thanks,
Barry
[Updated by Barry Xie MSFT Support, 9:19 AM, Sep, 21, 2017 (UTC)]