About BAPI_QUOTATION_CREATEFROMDATA

Dear Experts,

I need to create Customer Quotations by using VA21, for this i found two BAPIs

like BAPI_QUOTATION_CREATEFROMDATA & BAPI_QUOTATION_CREATEFROMDATA2.

In this two BAPIs also i didn't found field names for Sold to party and Ship to party. Plzz

can any one tell me what is structure name and field names related to sold to party and ship to party.

Thanks in Advance....