Hi Hugo,
Thank you for your question.
By error information, you dont have enough permission to open EMC:
- Add user to Exchange Organization Administrator:
 
      Open Active Directory User and Computer>navigate
Microsoft Exchange Security Group>right Exchange Organization Administrator
and choose properties>click Member and add user account
  2. We could add the following command in PS:
    Add-RoleGroupMember "Recipient Management" -Member Administrator
    Add-RoleGroupMember "Server Management" -Member Administrator
    If we get error when we run the command, we could refer to the following link to learn about RBAC which was introduced on Exchange 2010:
     
https://technet.microsoft.com/en-us/library/dd298183(v=exchg.141).aspx
There are some similar cases which we could refer to by the following links:
https://social.technet.microsoft.com/Forums/exchange/en-US/b57dc0a3-b2aa-48fd-b1c1-fa9583e019be/exchange-management-consoleorganisation-configurationyou-dont-have-sufficient-permissions-to-view?forum=exchange2010
https://social.technet.microsoft.com/Forums/exchange/en-US/35db85d7-0403-4b1c-bcbd-264115346c06/exchange-organisation-configuration-you-dont-have-sufficient-permissions-to-view-this-data?forum=exchange2010
If there are any questions regarding this issue, please be free to let me know. 
Best Regard,
Jim
                        
                
                        
            
                    - 
                        Edited by
                            jim-xu
                        Tuesday, February 03, 2015 2:17 AM