I am trying to change our Ecommerce platform. Although our current platform gives us good results in SEO but there are integration issues with third party apps as it is very hard to keep the shopping cart at the latest version. Shopify will solve integration issues but what about SEO? We do not want our site rankings to fall down after the migration.
With any site migration, your biggest issue will be in setting up URL redirect. Fortunately, Shopify supports this and all other essential SEO features like sitemaps, custom meta tags, opengraph tags, etc. If you need more than that, there's a few great SEO apps that can assists like New Leaf Labs.