Product - Missing required name field
LocalBusiness - Missing required address field
Article - Missing required headline field
Review - Missing required itemReviewed, reviewRating, author fields
Event - Missing required startDate and location fields
Recipe - Missing required name, recipeIngredient, recipeInstructions fields

Issue: Missing required name property

Has: description, offers

{
  "@type": "Product",
  "description": "...",
  "offers": {...}
  // Missing: "name"
}

Issue: Missing required address property

Has: name, telephone

{
  "@type": "LocalBusiness",
  "name": "Acme Corp",
  "telephone": "..."
  // Missing: "address"
}

Issue: Missing required headline property

Has: author, datePublished

{
  "@type": "Article",
  "author": {...},
  "datePublished": "..."
  // Missing: "headline"
}

Issues: Missing itemReviewed, reviewRating, author

Has: reviewBody only

{
  "@type": "Review",
  "reviewBody": "..."
  // Missing: itemReviewed, reviewRating, author
}

Issue: Has required name, but missing recommended fields

Missing recommended: url, logo, contactPoint, sameAs

{
  "@type": "Organization",
  "name": "Minimal Organization"
  // Recommended: url, logo, contactPoint, sameAs
}

Issue: Has required name, but missing recommended fields

Missing recommended: image, jobTitle, worksFor, sameAs

{
  "@type": "Person",
  "name": "Jane Doe"
  // Recommended: image, jobTitle, worksFor, sameAs
}

Schema Errors Test Page