At the beggining of O365 was not posible to set an specific rol for administrators, Microsoft says that this feature was “in development”, but currently we can say that this option is avalaible in our tenants. The avalaible roles are the following:
SharePoint administrator
Exchange Administrator
Lync Administrator
User/AD Administrator
Helpdesk Administrator
Support Administrator
To use the limited roles, we have to do this:
1. Go to the Office 365 Admin Portal https://portal.office.com/admin/default.aspx
2. Select Users Active Users
3. Locate a user using search
4. On the Righthand side, Click on Edit User Roles
5. Next, select Limited Admin Role and then check the roles you want the user to have, one or many.
6. Enter an alternate email, same as you do/did for a Global Administrator account
It cannot be a email address that residen within the tenant
7. Save and you are done
Albandrod's Memory 