Source: Schema.org v30.1 vocabulary. Official confirmationNumber property definition.
What does confirmationNumber mean?
A number that confirms the given order or payment has been received.
Parent properties
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