BAPI_SALESORDERS_GETLIST

Friends,

I am trying to display sales orders detials in an iView using WD.

Like standard scenario, I pass input element as Customer_Number from WD iView and i want to see all the listed sales order for that specific customer.

To achieve this, I called the BAPI : BAPI_SALESORDERS_GETLIST, then i am confused here what parameter i need to bind to my custome controller?

is it

BAPI_SALESORDERS_GETLIST_INPUT

OR

BAPI_SALESORDERS_GETLIST_OUTPUT

OR

BAPIORDER

BAPIRETURNS

I am really confused here, and I appreciate for the kind answer on eloborating more on this ? it would be great exactly what parameters i should use to achieve this scenario?

many Thanks

Peter