We need a way to schedule a sale automatically. You have this in promotions/marketing, however it does not add product ON SALE when it is done this way. So we have to manually check the box to put an item on or off sale if we want that item to show up in the on sale category.
I have never not had this option to schedule a sale and don't understand why this is missing in 3dCart. I have to go in at midnight to start and stop sales for a client and let me tell you this is NOT fun.