Today I found out that ShipStation doesn't sync product weights and packages from Shopify to ShipStation. I understand that I can manually input these values myself, however, if I'm new to the application and I have over 2,000 SKUs, I really would not want to find out I have to manually input the weight and dimensions of every SKU after I have already done this in Shopify.
This also directly affects the live rates at checkout because they're not taking into account weights and dimensions when calculating, if you don't have all of these already set up.
This would be so helpful in providing far more accurate and convenient setup with the checkout rates, and I know that it would not be very hard to implement.