Originally Posted by
mkjr
common amongst poorly designed shopping systems but not with decent online shopping systems that take the item out of inventory for a period of time to complete the transaction...
I'm not sure why BA would want to take the item out of inventory for any significant period of time for a perishable item. The so called "decent online system" would be more likely to lead to lost sales and empty seats - particularly in the case of a change as effectively 2 seats (the original and the change) would be out of inventory for this period.