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I know it's possible depending on your host, but in the case of a Shopify-hosted website if they're saying in their own forums that it can't be done then they can't (or won't) do it. At that point either using Shopify's blog or subdomain (not recommended) are your choices. If you have an existing blog and need to import the posts to Shopify you can use: https://apps.shopify.com/blogfeeder .