Schedule Line Behaviour

Hi,

I have a customer who has a Sales Order which has two schedules lines. The first line has a confirmed quantity of zero (17/11/10) and the second one has a confirmed quantity of 10 (03/12/10). The 10 that are due to be shipped on the 3rd have been delayed until the 10th. Can you please confirm the following: -

1) After MRP is run it will not affect the Sales Order?

2) The user will either have to update the Sales Order manually or even create an automatically job to do this?

3) Will a third line be created for the 10th with a confirmed quantity of 10?

4) Will line 2 that had a quantity of 10 now show zero?

Regards,

Graeme