--- title: Schema Validation Errors: Why AI Might Skip Your Data slug: schema validation errors --- ### FAQ Expansion ### Q: What causes schema validation errors? Schema validation errors happen when files use incorrect field names, missing brackets, or outdated schema.org properties. ### Q: Why does it matter? AIs can’t parse invalid data—causing missed citations or exclusion from AI summaries. ### Q: How to fix it? Validate your schema with online tools, correct syntax, and resubmit updated files through your AI sitemap.