Source: Schema.org v30.1 vocabulary. Official hasParticipationOffer property definition.
What does hasParticipationOffer mean?
An offer to participate in the event, for example, Call for Proposals, Call for Speakers, or Call for Performers.
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