Create a Group in Office 365

The Office 365 Group is a collection of cross-application membership in Exchange Online. With this group mailbox, the members can access the resources which are shared among the group members.

Method 1: Create an Office 365 Group Using the Exchange Admin Center

The administrator can create a Group in Office 365 via Admin Portal. Just follow all the instructions to create an Office 365 Group Mailbox.

Step 1: Open the Admin Center window after login the Office 365 Administrator Mailbox. Then go to the Groups under the recipients option.

Step 2: Click on New Office 365 group and a new window will appear, here type the Group name, user name and Browse the Owner name then hit on Save.

Note: You can provide Privacy (Public or Private) according to your requirement.

Step 3: After clicking on the Save Button a window will open then go to membership >> click on "+" icon and select the members. Now hit on Add >> Ok and Save it.

Method 2: Create a Group in Office 365 Mailbox Through Windows PowerShell

Here you can also use the Microsoft Windows PowerShell commands for creating the Office 365 group.

Step 1: Firstly you have to establish the connection of the Exchange Online mailbox to the PowerShell.

Step 2: Once you connect to the PowerShell you need to enter the following commands for creating the Office 365 Group.

Now the Group has been successfully created but there is not specify that it is a Private or Public Office 365 Group.

Note: By default, the created group treat as a Public o365 Group and there are no members available excepting the group owner.

So now we will assign the Access type (public or private), add the members, and an additional Group Owner.

Set the Access Type (Private):

Add the Members in the Office 365 Group:

For Adding Additional Owner:

Note: While you are running the Add-UnifiedGroupLink command might be you will get an error due to the Mail Recipients permission. You can resolve this issue by providing the Recipient Management permission.

Check the Assigned Owner and Members:

Remove Member or Owner:

Final Verdict: In the above post, I discussed each and every detail regarding the Office 365 Group mailbox. I hope it will help you to create the o365 group.