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schema.orggoogle-rich-snippets

SDTT error: "Service is not a known valid target type for the itemReviewed property"

Using the following HTML+RDFa:

<div vocab="https://schema.org/" typeof="Service">
        <meta property="name" content="My Service Name"/>
        <div property="description">
            For verified ratings of our services, please view our:
            <a
                href="https://www.capterra.com/link/to/captera"
                target="_blank"
            >4.9 Star Rating on Capterra</a>
        </div>
        <div property="aggregateRating" typeof="AggregateRating">
            <div>
                Capterra Rating:
                <span property="ratingValue">4.9</span> out of
                <span property="bestRating">5</span> with
                <span property="ratingCount">112</span> ratings
            </div>
        </div>
    </div>

This snippet is in my code, but when I test it all in Google's Structured Data Testing Tool, I get the following error:

I'm having trouble accepting this error because (if i'm reading this correctly), according to the Service docs in https://schema.org/, this is a supported property. I'm sure there is a syntax error somewhere or, if I dare touch the sun, Google is wrong.

I ran it through the structured data and it recognized it:

What am I doing wrong here?

Solution

  • You are not doing anything wrong.

    On 16th Sep 2019, Google tweaked their rich snippets requirements, wherein the itemReviewed property is now supported only for a very small list of Schema.org types.

    As per Google:

    While, technically, you can attach review markup to any schema type, for many types displaying star reviews does not add much value for the user. With this change, we’re limiting the pool of schema types that can potentially trigger review rich results in search. Specifically, we’ll only display reviews with those types (and their respective subtypes)...

    Earlier, CreativeWork, Article, BlogPosting, Service were all supported and there was no error message on the structured data testing tool.

    Now, any schema other than the list below will trigger a '_______ is not a known valid target type for the itemReviewed property.' error.

    The valid types for the itemReviewed property are:

    • Book
    • ListItem
    • Course
    • CreativeWorkSeason
    • CreativeWorkSeries
    • Episode
    • Event
    • Game
    • HowTo
    • LocalBusiness
    • MediaObject
    • Movie
    • MusicPlaylist
    • MusicRecording
    • Organization
    • Product
    • Recipe
    • SoftwareApplication

    Note : There are other schema types that are valid and may not trigger an error message on the testing tool for aggregateRating or itemReviewed. However, from the Google Blog posting, I understand it as 'Even if the schema is valid, stars / rich snippets may not show up for schemas other than those specifically listed.'