Let customers attach files (proofs, artwork, spec sheets, documents) where they buy: on product pages, in the cart, and in checkout. Every upload saves straight to your own Shopify Files and is linked to the order automatically, so there is nothing extra to log into or manage. Choose the file types, sizes, and how many files each block accepts. Fire a Shopify Flow action on every upload to automate the rest. No customer personal data is stored.