AX 2012 How to import Item master

Hi, there

We face some problem to import Item master on AX 2012. I read http://blogs.msdn.com/b/dynamicsaxscm/archive/2011/07/06/product-item-data-management-services.aspx

this article but I cannot see EcoRes* on service operations. How can I add them? and if somebody succeed to import Item master, let me know this, please.

Regards,