A user permission role is required for customers to create or import orders. With this permission, customers can import inaccurate product data from the WMS (including products that don’t need to be listed on Shopify and products with outdated nominal values for customs) and push that product data to Shopify resulting in new products being listed on Shopify or overriding. A solution would be to modify the organization user and account user roles to disable the ability to synchronize products between the sales channel and fulfillment channel.