Platform Events Developer Guide
jNewer Version Available
Platform Event Allocations
| Description | Performance and Unlimited Editions | Enterprise Edition | All other supported editions |
|---|---|---|---|
| Maximum number of platform event definitions that can be created in an org | 100 | 50 | 5 |
| Maximum number of event notifications published per hour | 100,000 | 100,000 | 1,000 |
| Maximum number of event notifications delivered to CometD clients within a 24-hour period1 | 50,000 | 25,000 | 10,000 |
| Maximum number of concurrent CometD clients (subscribers) per platform event channel or across all platform event channels2 | 2,000 | 1,000 | 20 |
| Maximum number of processes or flow interviews that can subscribe to a platform event | 500 | 500 | 500 |
| Maximum number of active processes or flow interviews that can subscribe to a platform event | 50 | 50 | 50 |
1To request a higher number of events delivered to CometD clients, contact Salesforce to purchase an add-on license. The add-on license increases your daily limit of delivered events by 100,000 more events. For example, for Unlimited Edition, the add-on license increases the daily limit of delivered events from 50,000 to 150,000 events. You can purchase multiple add-ons to meet your event requirements for CometD clients. To avoid deployment problems and degradation in service, we recommend that the number of events delivered to CometD clients not exceed 5 million per day. If you require more external events, contact your Salesforce representative to understand how the product can scale to meet your needs.
2This allocation is similar to the counterpart concurrent clients allocation in Streaming API for PushTopic and generic events.