Source: Schema.org v30.1 vocabulary. Official validFrom property definition.
What does validFrom mean?
The date when the item becomes valid.
Used on types (domainIncludes)
- Certification
- Demand
- FinancialIncentive
- LocationFeatureSpecification
- MonetaryAmount
- Offer
- OpeningHoursSpecification
- Permit
- PriceSpecification
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