Moving to Shopify Plus, from a standard Shopify plan or from WooCommerce, Magento or BigCommerce. We set up what Plus opens up on a preview first: checkout branding and blocks, your discount and shipping rules rebuilt as Shopify Functions, B2B company accounts with their own price lists and payment terms, and markets per country. Coming from another platform, products, customers and pages move over and every old URL gets a 301 redirect. Before the switch we place test orders for retail, wholesale and discount cases. $1,500 fixed for one store (catalogs over about 2,000 products priced after we see the export; the Plus plan itself is billed by Shopify), and monthly care after launch is $400.