Outlook 2013 integration with C4C

Hi,

I have integrate outlook with c4c.

But when i try to download contacts from c4c into outlook it shows following error in outlook(c4c user is admin).

- Authorization role missing for service "ServiceInterface http://sap.com/xi/A1S/Global QueryContactIn ",

And,

When i tried to download contacts from c4c into outlook with another user (limited access) it conflicts.

- Account processed with conflict; system user does not match Microsoft Outlook user.

  System User:

  Microsoft Outlook User: abc@xyz.com

Please suggest me a way as i don't get enough help/forums on outlook integration problems.

Thanks