Source: Schema.org v30.1 vocabulary. Official credentialCategory property definition.
What does credentialCategory mean?
The category or type of credential being described, for example "degree”, “certificate”, “badge”, or more specific term.
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