---
title: unknown
framework: storekit
role: symbol
role_heading: Type Property
path: storekit/skanerror-swift.struct/unknown
---

# unknown

An unknown error occurred.

## Declaration

```swift
static var unknown: SKANError.Code { get }
```

## Discussion

Discussion If this error appears, continue processing the ad; an ad impression may succeed despite this error.

## See Also

### Getting Error Codes

- [adNetworkIdMissing](storekit/skanerror-swift.struct/adnetworkidmissing.md)
- [impressionMissingRequiredValue](storekit/skanerror-swift.struct/impressionmissingrequiredvalue.md)
- [impressionNotFound](storekit/skanerror-swift.struct/impressionnotfound.md)
- [impressionTooShort](storekit/skanerror-swift.struct/impressiontooshort.md)
- [invalidAdvertisedAppId](storekit/skanerror-swift.struct/invalidadvertisedappid.md)
- [invalidCampaignId](storekit/skanerror-swift.struct/invalidcampaignid.md)
- [invalidConversionValue](storekit/skanerror-swift.struct/invalidconversionvalue.md)
- [invalidSourceAppId](storekit/skanerror-swift.struct/invalidsourceappid.md)
- [invalidVersion](storekit/skanerror-swift.struct/invalidversion.md)
- [mismatchedSourceAppId](storekit/skanerror-swift.struct/mismatchedsourceappid.md)
- [unsupported](storekit/skanerror-swift.struct/unsupported.md)
- [SKANError.Code](storekit/skanerror-swift.struct/code.md)