Source: Schema.org v30.1 vocabulary. Official stepValue property definition.
What does stepValue mean?
The stepValue attribute indicates the granularity that is expected (and required) of the value in a PropertyValueSpecification.
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