---
title: SKAdTestError.Code.signatureMissingCampaignId
framework: storekittest
role: symbol
role_heading: Case
path: storekittest/skadtesterror/code/signaturemissingcampaignid
---

# SKAdTestError.Code.signatureMissingCampaignId

The signature is missing the campaign identifier, in the testing environment.

## Declaration

```swift
case signatureMissingCampaignId
```

## Discussion

Discussion Be sure to include the campaign identifier when you create and validate an ad impression in the testing environment.

## See Also

### Older Errors

- [SKAdTestError.Code.invalidCampaignId](storekittest/skadtesterror/code/invalidcampaignid.md)
- [SKAdTestError.Code.conflictingSource](storekittest/skadtesterror/code/conflictingsource.md)
- [SKAdTestError.Code.invalidCampaignId](storekittest/skadtesterror/code/invalidcampaignid.md)
- [SKAdTestError.Code.conflictingSource](storekittest/skadtesterror/code/conflictingsource.md)