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Dated (`2026-09`) custom event definition reads carry `labels.singular` and `labels.plural`, and no `label`.

Source pending

Area: Events
Tags: events, custom-events, labels, event-definitions, read-shape

More facts from this area

Custom behavioral events need an Enterprise subscription.Source pending
A flow or list filter's eventTypeId equals the custom event definition's objectTypeId (6-<definition id>); HubSpot's own events appear as 4-<n>.Measured
A custom event's fully qualified name, used to send and read it, is pe<hubId>_<name>, so it differs per portal; its definition also gets an event type ID 6-<n>. Key definitions on name or objectTypeId.Documented and measured
Custom event property enumeration options are stored with their value exactly as sent.Source pending
A custom event defined on a custom object takes the object's short name as primaryObject. The object type ID (2-…), the portal-qualified p<hub>_<name> and the upper-cased name are rejected.Measured

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