Fixing Google Search Console structured data errors for Shopify products
If you got a message from the Google Search console that contains the following text:

Products structured data issues detected
Search Console has identified that your site is affected by Products structured data issue(s):
Top Warnings
Warnings are suggestions for improvement. Some warnings can affect your appearance on Search; some might be reclassified as errors in the future. The following warnings were found on your site:
No global identifier provided (e.g., gtin, mpn, isbn)
Missing field “sku”
Missing field “priceValidUntil” (in “offers”)
Invalid object type for field “brand”
Missing field “review”
… or other warnings
You can fix these errors by following 3 easy steps:
1. Install the application for products schema markup: https://apps.shopify.com/seo-schema-for-products-1
2. Check the options that are mentioned in the Google Search Console email:

3. Add shipping details to improve your site for search engines and beat your competitors (Read more)
As a bonus, this application adds the schema for all your product variants!
