---
title: missingSignature
framework: storekittest
role: symbol
role_heading: Type Property
path: storekittest/skadtesterror/missingsignature
---

# missingSignature

The signature for the ad is missing, in the testing environment.

## Declaration

```swift
static var missingSignature: SKAdTestError.Code { get }
```

## Discussion

Discussion Check that you provide a signature in validate(_:publicKey:) or validateImpression(parameters:publicKey:).

## See Also

### Getting Signature Errors

- [signatureInvalidKey](storekittest/skadtesterror/signatureinvalidkey.md)
- [signatureInvalidOrder](storekittest/skadtesterror/signatureinvalidorder.md)
- [signatureMissingAdNetworkId](storekittest/skadtesterror/signaturemissingadnetworkid.md)
- [signatureMissingAppAdamId](storekittest/skadtesterror/signaturemissingappadamid.md)
- [signatureMissingFidelityType](storekittest/skadtesterror/signaturemissingfidelitytype.md)
- [signatureMissingNonce](storekittest/skadtesterror/signaturemissingnonce.md)
- [signatureMissingSourceAppAdamId](storekittest/skadtesterror/signaturemissingsourceappadamid.md)
- [signatureMissingSourceDomain](storekittest/skadtesterror/signaturemissingsourcedomain.md)
- [signatureMissingSourceIdentifier](storekittest/skadtesterror/signaturemissingsourceidentifier.md)
- [signatureMissingTimestamp](storekittest/skadtesterror/signaturemissingtimestamp.md)
- [signatureUnknownError](storekittest/skadtesterror/signatureunknownerror.md)
- [signatureVerificationFailed](storekittest/skadtesterror/signatureverificationfailed.md)