For manufacturers, distributors, wholesalers, and other B2B businesses, a Shopify implementation often depends as much on back-office systems as it does on the storefront. An ERP may remain responsible for inventory, product information, customer accounts, pricing, payment terms, orders, invoices, or fulfillment. If Shopify and the ERP operate independently, teams can end up re-entering orders, correcting inventory, reconciling pricing, and manually updating customer records.