Structured Data Required Properties Missing

Rule Severity and Score

Rule id

structured_data.required_properties

Group

Structured Data

Severity of a failure

Warning

Counts in the score

Yes, whenever it applies to the page

Required for a score

No

Condition and Exceptions

Condition

An item of a type in Rules/StructuredData/required_properties.json (built from each Google Search Central page, URL and date per entry) lacks a required property, or a nested object lacks a required nested property → fail; evidence names the type, the path, the property and the documentation URL

Exceptions

No listed type → not_applicable; an ImageObject without license/acquireLicensePage is not license metadata; a nested object whose @type has its own entry is checked against it; when the only requirements missing are rating or review alternatives (aggregateRating, review: SoftwareApplication) → review, never a scored fail

Sources and Project Decision

Sources

General Structured Data Guidelines (Google Search Central, Q05)
Structured Data Markup that Google Search Supports (Google Search Central, Q13)

Project decision

Warning: Google states that items missing required properties are not eligible for rich results (Q05). Checked: top-level items, @graph items and list items, with array @type; nested objects where the documentation defines required nested properties (an offer's price, a breadcrumb item's position). A nested object whose @type has its own entry is checked against that entry. Image license metadata applies only to an ImageObject that declares license or acquireLicensePage. LocalBusiness subtypes (Restaurant, Store) are not matched. FAQPage is not included. When the only requirements missing are rating or review alternatives (aggregateRating or review, as for SoftwareApplication), the result is a review: ratings cannot be added honestly where none exist (lot 3).