Either ‘offers’, ‘review’ or ‘aggregateRating’ should be specified

Hi
re this eror Either ‘offers’, ‘review’ or ‘aggregateRating’ should be specified
I know you say get a review and it will go away but that is easier said than done !! 🙂 especially if you have say a thousand products.

Yoast say they have a fix and this suggests removing the schema with this
/**
* Remove the generated product schema markup from Product Category and Shop pages.
*/
function wc_remove_product_schema_product_archive() {
remove_action( ‘woocommerce_shop_loop’, array( WC()->structured_data, ‘generate_product_data’ ), 10, 0 );
}
add_action( ‘woocommerce_init’, ‘wc_remove_product_schema_product_archive’ );

Now i could review the product myself on behalf of clients but I guess that would be penalised.

Does this error prevent indexing and or hinder ranking?

One other thing – for product colours do you recommend variable products or a product for each colour? Does the latter cause duplicate content and inhibit ranking and indexing?

Many Thanks