---
title: "channelManager(_:failedToStopTransmittingInChannel:error:)"
framework: pushtotalk
role: symbol
role_heading: Instance Method
path: "pushtotalk/ptchannelmanagerdelegate/channelmanager(_:failedtostoptransmittinginchannel:error:)"
---

# channelManager(_:failedToStopTransmittingInChannel:error:)

Tells the observer that transmission failed to stop.

## Declaration

```swift
optional func channelManager(_ channelManager: PTChannelManager, failedToStopTransmittingInChannel channelUUID: UUID, error: any Error)
```

## Parameters

- `channelManager`: The channel manager.
- `channelUUID`: The channel identifier.
- `error`: The error that indicates the failure reason.

## See Also

### Beginning or ending transmission

- [channelManager(_:channelUUID:didBeginTransmittingFrom:)](pushtotalk/ptchannelmanagerdelegate/channelmanager(_:channeluuid:didbegintransmittingfrom:).md)
- [channelManager(_:channelUUID:didEndTransmittingFrom:)](pushtotalk/ptchannelmanagerdelegate/channelmanager(_:channeluuid:didendtransmittingfrom:).md)
- [channelManager(_:failedToBeginTransmittingInChannel:error:)](pushtotalk/ptchannelmanagerdelegate/channelmanager(_:failedtobegintransmittinginchannel:error:).md)
- [incomingServiceUpdatePush(channelManager:channelUUID:pushPayload:isHighPriority:remainingHighPriorityBudget:completion:)](pushtotalk/ptchannelmanagerdelegate/incomingserviceupdatepush(channelmanager:channeluuid:pushpayload:ishighpriority:remaininghighprioritybudget:completion:).md)