TI-API: TI-API: Status during TI system maintenance

Part Number: TI-API

Hi team, 

I have a few questions from customer.

1. If customer sends order retrieve during system maintenance against an order they tried to create also during system maintenance, then will the error code be "TI-TXT-003" Order not found error?

2. If customer sends order retrieve during system maintenance against an order they tried to change also during system maintenance, will the retrieve response be the order data before they requested order change?(meaning since the order change will be pending and not processed yet, will we give back data without the change applied?)

3. When customer tries order change during system maintenance, then the order status will be "Pending" as well, is my understanding correct?