Google Merchant Center is flagging five structured-data errors on my Shopify product pages: hasMerchantReturnPolicy, shippingDetails, aggregateRating, review, and priceValidUntil. The store already outputs Product and Breadcrumb schema through the theme, so I need a developer who can augment that existing JSON-LD without breaking anything that’s currently validating. You may write custom Liquid snippets or use a lightweight app, but the final schema must remain fully compliant with Google’s Product schema documentation and pass the Rich Results Test as well as the Merchant Center diagnostics dashboard. Deliverables • Updated JSON-LD injected via theme or app, adding the five missing properties to every product • A brief note showing where the code lives and how to edit it in the future • Screenshots (or shared links) of successful validation in both the Rich Results Test and Merchant Center after deployment Acceptance Criteria The warnings disappear from Merchant Center within its next crawl cycle, and a manual Rich Results Test on any product URL shows zero critical errors.