This concept ensures that every product can be assigned to a package, even if it doesn't fit into a standard option. It works like this: when a product is flagged for shipping, the system checks its dimensions (length, width, height, and weight) against a list of pre-defined, standard packaging sizes. If the product is too big for all of those standard options, it automatically defaults to a larger, all-purpose package. This prevents the system from generating an error or stopping the fulfillment process. Example Imagine your fulfillment center has three standard box sizes: Small Box: 10 x 10 x 10 inches Medium Box: 20 x 20 x 20 inches Large Box: 30 x 30 x 30 inches Now, let's say a customer orders a large poster that is 40 x 5 x 5 inches. The system first checks the Small Box. The poster's length (40 inches) is too long. Next, it checks the Medium Box and then the Large Box. The poster's length is too long for both of these as well. Instead of stopping the process and showing an error, the system automatically defaults to a "Custom Packaging" or "Oversized Box". This ensures the order can continue to be processed and shipped without any manual intervention.