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Do other schema apps interfere with Nabu Schema Pro? Should a store have only one schema app?

Yes, running more than one schema app on the same store almost always causes problems.

We strongly recommend keeping only one schema source active at a time, and Nabu Schema Pro is designed to be that single source.

This article explains why duplicate schema is a problem, how to spot it on your store, and what to do if you find a conflict.

Why multiple schema apps cause problems

Schema markup (also called structured data or JSON-LD) is the hidden code that tells Google what your page is about — the product, price, availability, brand, reviews, breadcrumbs, article author, and so on.

When two apps add schema to the same page, you end up with two competing blocks of structured data describing the same thing. This creates three real issues:

Conflicting values. App A might say a product is "In Stock" while App B says "Out of Stock." Google sees both and has to pick one — or it ignores both.
Duplicate entities. Two Product or BreadcrumbList blocks on the same URL look like an attempt to game search results. Google's documentation explicitly warns against duplicate structured data.
Validation errors in Google Search Console. You'll start seeing "Duplicate field," "Conflicting values," or "Invalid object" warnings — and rich snippets may stop showing entirely.

The result: instead of helping your rankings, the schema markup actively works against them.

Updated on: 25/05/2026

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