Yes Alisa, great idea! You can absolutely try that as a first troubleshooting option and create 2 different shipment plans for different types of cartons. But if the error message occurs again, it’s something else and you’ll need SC to help understand what it is.
Never be afraid to request a call from SC. For those sellers who don’t use the ‘call back’ function, issues can last longer than they need to. While I will admit, there are a lot of Amazon SC agents who are less knowledgable than others, when you connect with a good SC agent you discover some golden tricks and understand a little more about your how your listings are set up, how your products are cataloged and more about the workings behind FBA!