We use UPS simple Rate plan for most of our UPS packages.
29 lbs = a medium package = $14.95
39 lbs = a large package = $19.60
Using the + button to add additional packages did not work in V2 or V3 because shipstation adds the weights of all the packages and quotes an incorrect price. It does not look at the individual package weight and quote based on that. In V2 we were able to keep hitting create label, and make unlimited amount of labels for an order. In V3 if we hit create a new shipment at the top, and a customer ordered a quantity of 1, it gives an error. We have many orders where a customer orders 1 product, but it has to be shipped in multiple UPS boxes.
In V2 we were able to keep hitting create label, and make unlimited amount of labels for an order. We wish to be able to bring this feature back or at least have a workaround option where when we hit the + button, there is an option to buy multiple shipping labels based on each package weight rather than the sum of all packages weights.
Would you be able to share how you managed to get UPS Simple Rate to work with ShipStation?
Do you still have simple rate working with shipstation for single shipments?