---
title: "assessmentSessionDidBegin(_:)"
framework: automaticassessmentconfiguration
role: symbol
role_heading: Instance Method
path: "automaticassessmentconfiguration/aeassessmentsessiondelegate/assessmentsessiondidbegin(_:)"
---

# assessmentSessionDidBegin(_:)

Tells the delegate that the session started.

## Declaration

```swift
optional func assessmentSessionDidBegin(_ session: AEAssessmentSession)
```

## Parameters

- `session`: The session that started.

## Discussion

Discussion After your app calls a session’s begin() method, the session asynchronously disables the appropriate system services and then calls its delegate’s assessmentSessionDidBegin(_:) method. Only after receiving this callback can you be sure that it’s safe to start an assessment. If the session fails to start for any reason, you receive a call to the assessmentSession(_:failedToBeginWithError:) method instead.

## See Also

### Responding to session start and stop

- [assessmentSession(_:failedToBeginWithError:)](automaticassessmentconfiguration/aeassessmentsessiondelegate/assessmentsession(_:failedtobeginwitherror:).md)
- [assessmentSession(_:wasInterruptedWithError:)](automaticassessmentconfiguration/aeassessmentsessiondelegate/assessmentsession(_:wasinterruptedwitherror:).md)
- [assessmentSessionDidEnd(_:)](automaticassessmentconfiguration/aeassessmentsessiondelegate/assessmentsessiondidend(_:).md)