---
title: unknownCallUUID
framework: callkit
role: symbol
role_heading: Type Property
path: callkit/cxerrorcoderequesttransactionerror-swift.struct/unknowncalluuid
---

# unknownCallUUID

The requested transaction contains call actions that reference an unknown UUID.

## Declaration

```swift
static var unknownCallUUID: CXErrorCodeRequestTransactionError.Code { get }
```

## See Also

### Constants

- [unknown](callkit/cxerrorcoderequesttransactionerror-swift.struct/unknown.md)
- [unentitled](callkit/cxerrorcoderequesttransactionerror-swift.struct/unentitled.md)
- [unknownCallProvider](callkit/cxerrorcoderequesttransactionerror-swift.struct/unknowncallprovider.md)
- [emptyTransaction](callkit/cxerrorcoderequesttransactionerror-swift.struct/emptytransaction.md)
- [callUUIDAlreadyExists](callkit/cxerrorcoderequesttransactionerror-swift.struct/calluuidalreadyexists.md)
- [invalidAction](callkit/cxerrorcoderequesttransactionerror-swift.struct/invalidaction.md)
- [maximumCallGroupsReached](callkit/cxerrorcoderequesttransactionerror-swift.struct/maximumcallgroupsreached.md)