Does data highlighter changes override the hard coded schema markup?

[SEOEnthusiast]

I hope one liner question explains what I'm looking for.

[BasKierkels]

Not for me but curious to hear what you are looking for exactly.

Bas

[Andy.Drinkwater]

Hi,

No, data highlighter doesn't overwrite schema, but I can say that in every instance I have seen it tried, it has never worked. I always end up creating correct schema for a page.

Personally, I would be interested to know if anyone has ever got Google's Data Highlighter to actually work.

-Andy

[RuthBurrReedy]

It's possible that Google might give Data Highlighter information more credence when generating a rich snippet, but the success rate for that is far from 100%, as Andy and Bas have mentioned. It's just as likely that Google will be confused about which data is correct, and either not generate a rich snippet at all or generate one based on the schema markup. I haven't had much success adding markup via the data highlighter or via Google Tag Manager; hard-coding it always seems to work better. If your schema markup is incorrect, I would not recommend using Data Highlighter to try to fix it without changing the code - your best bet is just to change it, especially since Data Highlighter won't help you out on Bing/Yahoo.