![microsoft online calendar sharing microsoft online calendar sharing](https://www.stephenhackers.co.uk/wp-content/uploads/2020/04/042320_2231_Office365Ex1.png)
![microsoft online calendar sharing microsoft online calendar sharing](https://i.ytimg.com/vi/ZNhuKAZtDU4/maxresdefault.jpg)
Exchange Online collaboration options Sharing goal Use the following tables to select solutions and learn more. Microsoft 365 inter-tenant collaboration options include using a central location for files and conversations, sharing calendars, using IM, audio/video calls for communication, and securing access to resources and applications. This article describes several key scenarios that Fabrikam and Contoso can consider. How can Fabrikam and Contoso enable their people and teams to collaborate more effectively across their different Microsoft 365 tenants in a secure manner? Microsoft 365, in conjunction with Azure Active Directory (Azure AD) B2B collaboration, provides several options.
![microsoft online calendar sharing microsoft online calendar sharing](https://docs.microsoft.com/en-us/outlook/troubleshoot/client/calendaring/media/how-to-share-calendar-and-contacts/permissions-tab.png)
Suppose that two organizations, Fabrikam and Contoso, each have a Microsoft 365 for business tenant and they want to work together on several projects some of which run for a limited time and some of which are ongoing.