Here are the latest news from Office 365, Teams, SharePoint Online and OneDrive:

prevent synchronization of content from other companies

Date: Mid June 2019

After June 17, 2019, it will be possible to synchronize content from other companies as well – provided they have been shared with you or the user. There will be a new setting to prevent this synchronization. This will only affect content that is shared with other companies.

Our recommendation: Consider whether you want to support or prevent the synchronization of content from other companies – and also whether you want to allow your users to access content from other companies at all. If you want to prevent access altogether, you can find more information here: Tenant Restrictions

More about the synchronization of external content here:
https://docs.microsoft.com/de-de/onedrive/b2b-sync

Microsoft publishes over 400 updates per year in Office 365 – which means that innovations are added almost daily. To keep you up to date, we summarize the most important things in short sentences and make recommendations on how your company should deal with the changes.