Google has made some changes to its new Structured data carousels (beta) documentation to list the feature availability of this carousel and also to clarify where to place the markup. Google wrote the “markup must be on the summary page, and you don’t need to add markup to the detail pages in order to be eligible for this feature.”

Google added this new documentation 5 weeks ago because of all the DMA changes happening in the European regions.

Here is what was added to the document:

Feature Availability

Google added this new section for feature availability:

How To Add Structured Data

Google clarified that the markup must be on the summary page, and you don’t need to add markup to the detail pages in order to be eligible for this feature.

Google replaced this section:

With this new section:

Google also added this:

And this section was updated and added:

Forum discussion at X.