Either “offers”, “review”, or “aggregateRating” should be specified

Hello,

Thank you for getting back to us here,

Upon checking your products page URL that you linked it does not seem to have the aggregateRating or offers error as you can see: https://i.rankmath.com/OmZMDx. Please use the rich results tool to make tests on your schema. There are only two errors which are:

Missing field “brand” (optional)
No global identifier provided (e.g., gtin, mpn, isbn) (optional)

To fix the brand warning, head over to WordPress Dashboard > Rank Math > General Settings > WooCommerce and choose from any of the available fields to use as your product’s brands.

If you want to use a custom value for your Brands, you can do that by using the following code in your theme’s functions.php file:

// Add Brand for Products.
add_filter( 'rank_math/snippet/rich_snippet_product_entity', function( $entity ) {
$entity['brand'] = 'Rank Math';
return $entity;
});

Replace the “Rank Math” text with your actual brand name then run your website through the Structured Data Testing tool once again.

As for the global identifier issue, with the PRO version, there is an Option to set the Global Identifier [GTIN, ISBN, MPN, etc.] for each WooCommerce product and if you use product schema there is a field for it as well. The values will be used in the Product Schema and help fix all the Google Schema errors related to products.

You can enable that option from here: Dashboard > Rank Math > General Settings > WooCommerce. https://i.rankmath.com/jj4GMY
Then you can go ahead and set it from your products data section as shown below: https://i.rankmath.com/IkDgpF

Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.