AI crawlers look at a public file on your site called robots.txt before they read your pages. If that file tells them to stay out, ChatGPT, Gemini, Claude, and Perplexity may never see what you sell.
Shopify's default file lets them in. Trouble usually starts with a custom robots.txt, a bot-blocking app, or domain-level bot settings.
Open yourstore.com/robots.txt and search for OAI-SearchBot, GPTBot, PerplexityBot, ClaudeBot, and Google-Extended. A "Disallow: /" under one of those names is a locked door. If you find one, remove that block so those crawlers can read your pages.
See whether AI can read your Shopify store at asaiseesit.com.