Select Save to save your changes and create the shared mailbox.
Under Full Access, select Add, and then select the security group that you want to be able to access the shared calendar and contacts list for the shared mailbox. In EAC, under Recipients > Shared, double-click the shared mailbox that you created in the previous step, and then select Mailbox delegation. Step 2: Assign the security group Full Access permission to the shared mailbox
Select Save, select Yes in the No permission granted warning dialog box. To provide the members of the security group access to the shared calendar and contacts list, you need to assign them Full Access permission to the shared mailbox by editing the shared mailbox after you have created it. The Send As permission field is not required to let your users access the shared calendar and shared contacts list. When you're done adding members, select Finish. The person is added to the list of members. In the search field, type a person's name and then select Search.
Not sure which Microsoft 365 plan your organization uses? Go to and login using your Microsoft 365 administrator credentials.) and login using your Microsoft 365 administrator credentials. Select the plan that your organization subscribes to in Microsoft 365. Share calendar or contacts with specific users.Set up a shared calendar or contacts list for my entire organization or large group of users.After you select the scenario, follow the step-by-step instructions. Select the scenario that you are trying to configure for your users.
Then we'll take you through a series of steps that are specific to your situation. We'll begin by asking you the task you want to do. Microsoft 365 users who want to share calendar or contacts list to others.