E-commerce suspend checkout while updating item price
In an e-commerce you update a shop item's price. This should of course be updated throughout the system, including carts with that item in them. How would I go about "suspending" cart checkout while prices are being updated? Just to be clear: The point is to ensure that the new prices are equally applied to everyone, and that the user is informed about the change before checking out! It could also be something other than item price, for instance delivery fees.
