About Sales Order Web Service

Hi ,

I want to know about creation of sales order by using wsdl .

If I create 3 Sales Order with 50 item by using webservice at the same time.

If one of sale order occur error , can be another SO save successfully?

eg : SO 1 create OK

SO 2 create OK

SO 3 create fail .

Above case , 　①Save SO1 and 2 successfully and don't save SO 3 ? 　

② Save all SO and SO 3 status "In Preperation"? 　

③Don't save all SO?

Best Regards,

Pole