Track External Object Data Callouts with Event Log Files (Pilot)

We added event types to the EventLogFile standard object to track Salesforce Connect callouts to external systems. Now you can audit the historical activity of your org’s access to external object data. For each callout, you can check whether it was a query or write operation, when the call occurred, and which user accessed the external data. These events are available in the API, but not yet in the Event Monitoring Analytics app.


We provide Salesforce Connect Callout Event Monitoring to customers through a public pilot program. The pilot event types are available in orgs that use Salesforce Connect and Event Monitoring. If your org doesn't have these features, contact your Salesforce account executive to participate in the pilot. Salesforce Connect Callout Event Monitoring is subject to change and isn’t generally available unless or until Salesforce announces its general availability in documentation or in press releases or public statements. We can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features. You can provide feedback and suggestions for Salesforce Connect Callout Event Monitoring in the Salesforce Connect group in the Success Community.

We’ve added three event types to the EventLogFile object.
  • External Cross-Org Callout—Callouts made via the cross-org adapter for Salesforce Connect
  • External Custom Apex Callout—Callouts made via custom adapters for Salesforce Connect
  • External OData Callout—Callouts made via the OData 2.0 and OData 4.0 adapters for Salesforce Connect


Suppose that your Salesforce org connects to an external system via an OData adapter. When you defined the external data source in Salesforce, you selected Named Principal for Identity Type. With the named principal, the same set of credentials is always used to access the external system from your org.

To identify the users who accessed an external object’s records during a specific time period, use the log data for the External OData Callout event type. Sort by ENTITY and USER_ID to see which users accessed the external object.

In this event log file, we see that the Product external object was accessed by three users over 12 callouts.Log data for the External OData Callout event type, with highlighted USER_ID values for callouts that access the Products external object