Office 365 Security & Compliance Center permissions are based on RBAC (Role Based Access Control) model as used by Exchange, with a varying difference in the implementation. The Office 365 Security & Compliance Center lets you grant permissions to people who perform compliance tasks like device management, data loss prevention, eDiscovery, retention, and so on.

1. Login in Microsoft Office 365.
2. Select the App launcher icon and choose “Admin”.
3. Expand “ADMIN” and click on “Security & Compliance”.
4. In the “Security & Compliance” window, click on “Permissions”. From the permission lists, choose the role group – “Compliance Administrator”, “eDiscovery Manager”, “Organization Management”, “Reviewer”, “Service Assurance User”, “Supervisory Review” – in which you want to add a user. Click (+) sign to add the new user.
5. “New role group” window appears on your screen. Enter the name for “New role group” in the name dialog box and fill description.
6. To select the role to assign the user click on (+) sign and select any role into the drop-down lists. Now click on (+) button. “Select a Role” will pop up with all the predefined roles. Click on “add ->” and then on Save to close the window.
7. If you want to add members, click on (+) sign and choose the members into the user’s list. Click OK.
8. Now, you can see full information in following image filled by the you or any users. After checking this information click on “Save” button.
9. Now, you can see your created “New role group” in the group lists. If you want to editi this new group role, click on “Edit” sign.