Understand Exchange Online Organization Sharing vs Individual Sharing
Question details
User needs to understand the differences between organization relationships and individual sharing policies in Exchange Online, and how to control external calendar permissions.
- Product
- Exchange Online
- Device & OS
- not provided
- Scenario
- Administrators or IT professionals looking to configure calendar sharing permissions with external users or federated organizations.
- Observed behavior
- Clarity is needed on how organization-wide sharing differs from user-controlled sharing, and whether administrative controls are required to lock user calendar permissions.
Ensure you have Exchange Administrator privileges to access the Exchange admin center and configure sharing policies or organization relationships.
Configure Organization Sharing for Federated Organizations
Use organization sharing when you need to configure calendar visibility between your entire organization and another federated Exchange organization.
Organization sharing relies on an administrator-configured organization relationship. This is typically used to establish a trusted connection with federated Exchange organizations.
With organization sharing, you can define the level of calendar access globally, such as 'no access', 'free/busy only', or 'free/busy with subject and location'.
Log in to the Microsoft 365 admin center and navigate to the Exchange admin center using your administrator credentials.
In the left-hand navigation pane, click on 'Organization' and then select 'Sharing'.
Under the 'Organization Sharing' section, click the plus (+) icon to create a new organization relationship with the target federated domain.
Specify the domain name and choose the appropriate free/busy access levels (e.g., free/busy with subject and location) to share with the external organization, then save your changes.
Manage Individual Sharing Policies
Configure individual sharing policies to control how specific users within your organization share their calendars with external contacts.
Boost Your Productivity with WPS Office
While Exchange Online handles your server-side calendar sharing, WPS Office provides a free, lightweight, and highly compatible desktop suite to manage your daily tasks, documents, and schedules efficiently.
- 1. Download the Installer: Visit the official WPS Office website and download the free installation package for your operating system.
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Frequently Asked Questions
Can users change their own calendar sharing permissions?
Yes, by default, individual sharing allows users to modify their own calendar permissions for external users. To prevent this, administrators must apply specific administrative controls, often via Exchange PowerShell, to lock these settings.
What is the main difference between organization and individual sharing?
Organization sharing is an administrator-configured relationship that applies globally between federated Exchange organizations. Individual sharing relies on sharing policies that dictate how individual users can manually share their personal calendars with external contacts.
Do I need a federated trust for individual calendar sharing?
No. Individual sharing uses sharing policies to allow users to share their calendars with external people or domains, which does not require establishing a full federated organization relationship.
