Microsoft announce the End Of Sale for Dynamics 365 Commerce Recommendations and Dynamics 365 Commerce Ratings and Reviews. These Dynamics 365 Commerce Add-ons, which supplement an eCommerce website with product suggestions and customer reviews, are no longer available for new purchases, with renewals soon to follow suit.

The (somewhat scant) details can be found here: https://bit.ly/3MgpPNl, and here: https://bit.ly/4qlkzWY.