detail

A valid JSON object. There is no other schema imposed. The JSON object may contain fields and nested sub-objects.

Detail, DetailType, and Source are required for EventBridge to successfully send an event to an event bus. If you include event entries in a request that do not include each of those properties, EventBridge fails that entry. If you submit a request in which none of the entries have each of these properties, EventBridge fails the entire request.