Reply To: Related products – Upsells

Hello,

Related Products is a section on some templates that pulls products from your store that share the same tags or categories as the current product.

These products cannot be specified in the admin, but can be influenced by grouping similar products in the same category or by using the same tags.

Please read about related products here – https://woocommerce.com/document/related-products-up-sells-and-cross-sells/

If you want to customize it follow this guide:
https://www.cloudways.com/blog/custom-related-products-in-woocommerce-store/

Best Regards.