创建销售订单：BAPI_SALESORDER_CREATEFROMDAT2

创建退货销售订单：BAPI_CUSTOMERRETURN_CREATE

根据销售订单生成交货单：BAPI_DELIVERYPROCESSING_EXEC

修改外向交货单：BAPI_OUTB_DELIVERY_CHANGE

修改内向交货单：BAPI_INB_DELIVERY_CHANGE

交货单发货过账：WS_DELIVERY_UPDATE

VF01/VF04开票：BAPI_BILLINGDOC_CREATEMULTIPLE