Re-Order button option.
Add a button to "re-order" in the customer order history. B2B business would be more efficient and convenient if it has a re-order option. Going to customer profile/orders, you select a past order to see the details and you can start a new order with it as a base. After hitting the "re-order" button you are given the chance to check the items the customer wants to re-order in the new order with updated pricing in the register app, following this flow you can even add another option to "add more items from another past order" (in case the customer wants to re-order items that are not grouped in only one past order). From there like any regular new order.