Re: one order Function Modules..................

Hi Ravichand,

These function modules are used to Read, Update & Save a One Order Document. I would suggest you to go trough the SAP Press Book CRM Technical Principles & Programming by Stephen Johannes to get a better idea on them. Here is the link for review of the same.

http://scn.sap.com/community/crm/blog/2013/06/19/sap-press-book-review-sap-crm-technical-principles-and-programming

Regards

Vinod