Is starnderd Xi content is needed to retail pro to SAP integration through SAP PO?

Hi Team,

I need suggestion , I am going to do the integration from retail pro to SAP. For that SAP has given the standard XI content.

I believe is that ,The slandered Xi content is  not mandatory to use , as per business needs I can use Idoc s or some other mechanism instead of Standard XI content.

Advise me the best approach ..

Regards,

Raj