Source: Schema.org v30.1 vocabulary. Official valueRequired property definition.
What does valueRequired mean?
Whether the property must be filled in to complete the action. Default is false.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status