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

# mismatchedSourceAppId

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

## Declaration

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

## Discussion

Discussion Check that the sourceAppStoreItemIdentifier you provide in the SKAdImpression object matches the app identifier of the app displaying the ad.

## 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)
- [unknown](storekit/skanerror-swift.struct/unknown.md)
- [unsupported](storekit/skanerror-swift.struct/unsupported.md)
- [SKANError.Code](storekit/skanerror-swift.struct/code.md)