Platform Events (Beta) Developer Guide
jSummer '26 (API version 67.0)
Spring '26 (API version 66.0)
Winter '26 (API version 65.0)
Summer '25 (API version 64.0)
Spring '25 (API version 63.0)
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Spring '24 (API version 60.0)
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Summer '22 (API version 55.0)
Spring '22 (API version 54.0)
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Summer '21 (API version 52.0)
Spring '21 (API version 51.0)
Winter '21 (API version 50.0)
Summer '20 (API version 49.0)
Spring '20 (API version 48.0)
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Summer '19 (API version 46.0)
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Summer '18 (API version 43.0)
Spring '18 (API version 42.0)
Winter '18 (API version 41.0)
Summer '17 (API version 40.0)
Spring '17 (API version 39.0)
Subscribe to Platform Event Notifications with CometD
Obtain Event Subscribers
Newer Version Available
Subscribing to Platform Events
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Subscribe to Platform Event Notifications with Apex Triggers
Use Apex triggers to subscribe to events. You can receive event notifications in triggers regardless of how they were published—through Apex or APIs. Triggers provide an autosubscription mechanism. No need to explicitly create and listen to a channel in Apex. -
Subscribe to Platform Event Notifications with CometD
Use EMP Connector to receive platform events in an external Java app. EMP Connector connects to CometD and hides the complexity of subscribing to events. -
Obtain Event Subscribers
View a list of all triggers that are subscribed to a platform event by using the Salesforce user interface or the API.