We have a situation, a high percentage of our deliveries’ customers change the delivery date or time after the order is paid. Our deliveries are usually days or weeks later, so, a change in the delivery date and time is normal. How can we change the delivery date and time in orders already paid? even manually or using the API?
With the Orders API you can use UpdateOrder to update the fulfillment of an order if the fulfillment details need to be adjusted. 