Source: Schema.org v30.1 vocabulary. Official expectsAcceptanceOf property definition.
What does expectsAcceptanceOf mean?
An Offer which must be accepted before the user can perform the Action. For example, the user may need to buy a movie before being able to watch it.
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