Agreed. We need the ability to invoice clients and an integrated shipping component. I'm not sure why these two things aren't standard for squarespace as an e-commerce platform. I switched over from Shopify (after 3 years) in March because I was frustrated designing my site on Shopify to Squarespace, which is fabulous for design, but lacking in every other area. I'm kicking myself for paying for a year of Squarespace service after learning about these shortfalls.