Google console product display.

Hello,

Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.

Even in the Rank Math free plugin, your product should show on the search results pages as a product using the product schema.

For us to investigate this issue further, please share some of the affected product URLs. You can add them in the sensitive data section.

It is completely secure, and only our support staff has access to that section.

Looking forward to helping you.

Thank you.

Hello,

I’ve checked your products using Google’s Rich Results test, and the product schema is already applied. However, there are some warnings you can fix by following the steps in this link:
https://rankmath.com/kb/either-offers-review-or-aggregaterating-should-be-specified/

Moreover, please note that Google does not guarantee getting displayed on rich previews even if your schema meets all the requirements. 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

I hope that helps.

Thank you.