An administrator has created a flow that sends platform events whenever an opportunity is updated.

To debug platform events in Apex code, you need to set a debug log on the Automated Process entity. This entity represents an automated process user that runs flows and processes in your org. By setting a debug log on this entity, you can capture the events that are published and consumed by your flow and Apex code, as well as any errors or exceptions that occur during the execution. References: https://developer.salesforce.com/docs/atlas.en-us.platform_events.meta/platform_events/platform_events_debug.htm https://help.salesforce.com/s/articleView?id=sf.code_add_users_debug_log.htm &type=5