urning emailed spreadsheets into Magento orders without asking customers to change

Every B2B Magento store I've worked on has the same quiet leak. A chunk of the orders never touch the storefront. They arrive as an .xlsx exported from the buyer's purchasing system, a PDF purchase order, or a photo of a list someone wrote by hand. A person on the seller's side opens the admin, clicks Create New Order, and retypes it. Nobody logs...