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# SKANError

An error that an ad network attribution operation returns.

```
struct SKANError
```

## Topics

### Getting Error Codes

[`adNetworkIdMissing`](/documentation/StoreKit/SKANError-swift.struct/adNetworkIdMissing)

The ad network identifier in the ad impression doesn’t match the value in the information property list.

[`impressionMissingRequiredValue`](/documentation/StoreKit/SKANError-swift.struct/impressionMissingRequiredValue)

A required value is missing from a view-through ad impression.

[`impressionNotFound`](/documentation/StoreKit/SKANError-swift.struct/impressionNotFound)

The system can’t find the ad impression.

[`impressionTooShort`](/documentation/StoreKit/SKANError-swift.struct/impressionTooShort)

[`invalidAdvertisedAppId`](/documentation/StoreKit/SKANError-swift.struct/invalidAdvertisedAppId)

The App Store ID of the advertised app is invalid.

[`invalidCampaignId`](/documentation/StoreKit/SKANError-swift.struct/invalidCampaignId)

The campaign identifier that you provided is invalid.

[`invalidConversionValue`](/documentation/StoreKit/SKANError-swift.struct/invalidConversionValue)

The conversion value is invalid.

[`invalidSourceAppId`](/documentation/StoreKit/SKANError-swift.struct/invalidSourceAppId)

The App Store ID of the app displaying the ad is invalid.

[`invalidVersion`](/documentation/StoreKit/SKANError-swift.struct/invalidVersion)

The SKAdNetwork version number is invalid.

[`mismatchedSourceAppId`](/documentation/StoreKit/SKANError-swift.struct/mismatchedSourceAppId)

The source app identifier in the ad impression doesn’t match the app identifier in the source app.

[`unknown`](/documentation/StoreKit/SKANError-swift.struct/unknown)

An unknown error occurred.

[`unsupported`](/documentation/StoreKit/SKANError-swift.struct/unsupported)

Your app attempted to use functionality that isn’t supported in the specified version.

[`Code`](/documentation/StoreKit/SKANError-swift.struct/Code)

Constants that indicate the type of error for an ad network attribution operation.

### Type Properties

[`errorDomain`](/documentation/StoreKit/SKANError-swift.struct/errorDomain)

## Relationships

### Conforms To

[`CustomNSError`](/documentation/Foundation/CustomNSError)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

[`Sendable`](/documentation/Swift/Sendable)

[`Error`](/documentation/Swift/Error)

---

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