说说吧.
交货和发票如何进行?

进行预付款的检查设置吧，客户的风险类别设置成现金客户，预付款比例100％，信贷额度为0.01元。
当创建SO，保存时，若没有收到客户的预付款，则该订单被信贷冻结，就无法进行后续交货了。只有当收到客户的预付款，然后录入系统后，再次激活订单才会释放该单，才可以进行正常的后续交货和开票。

In the sales document type for cash sales, the immediate delivery switch and delivery type BV are configured. When you save the cash sales, the system automatically creates a delivery of type BV and prints a document that can be given to the customer as an invoice.  


You control the invoice papers with output type RD03, contained in the output determination procedure for order type CS.  


Once the goods have been withdrawn from the warehouse, picking and posting goods issue can begin.  


An order-related billing index is generated automatically. This updates the billing due list. Billing type BV is created while the billing due list is being processed. The system does not print invoices during billing.

明白了。