Which scheme to choose?

Hello,

There’s no way to add this automatically with this type of Schema as we only do that and extract the user reviews from WooCommerce products when you use the WooCommerce Product Schema type.

To get the star ratings on this type of Schema you need to update the data manually or possibly create a custom variable that could extract that data from the database if it’s available there and accessible via PHP.

To create custom variables you can refer to the following filter which would need to be further edited: https://rankmath.com/kb/filters-hooks-api-developer/#add-extra-variables

Don’t hesitate to get in touch if you have any other questions.

Hello,

Please note that Google does not guarantee getting displayed on rich previews even if your schema meets all the requirements or using SEO plugins.

It is ultimately Google’s decision if they want to include them with your website or not and when it thinks the Schema is relevant to the search term used. It depends on a lot of factors, authority, and backlinks being just the 2 of them.

“Google does not guarantee that your structured data will show up in search results, even if your page is marked up correctly according to the Structured Data Testing Tool.”

Here’s a link for more information:
https://developers.google.com/search/docs/guides/sd-policies

However, with Rank Math PRO, you can easily create Schema Templates to fetch the data from your review plugin. You can refer to this article where we used the WP Review plugin data and associate it with Rank Math:
https://rankmath.com/kb/aggregate-rating-error/#num-4-3-create-schema-template-with-aggregate-rating

Hope that helps.

Thank you.