Hi. "Ordered" status is ok, all carts have it, presuming you mean status I1106?
Or do you mean it stays in that status and does not create a purchase order? If that is the case then there should be an error message in the application monitors / RZ20, is there anything there?
As for delivery date in the past, it really depends on each business whether it is acceptable or not, there is no right or wrong answer.
Where I am now some parts of the business use it accurately and report on it, others do not care about it.
Regards,
Dave.