# Creating a channel flow for Amazon Chime SDK messaging
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Once you have processor(s) setup, you use the Amazon Chime SDK Messaging APIs to create a channel flow. You can use a `Fallback` action to define whether to stop or continue processing if the channel flow can't connect to the processor Lambda function. If a processor has a fallback action of `ABORT`, the processor sets the message status to `FAILED`, and it doesn't send the message. Note that if the last processor in the channel flow sequence has a fallback action of `CONTINUE`, the message is considered processed and sent to recipients in the channel. Once you create a channel flow, you can associate it with individual channels. For more information, refer to the [https://docs.aws.amazon.com/chime-sdk/latest/APIReference/API_messaging-chime_CreateChannelFlow.html](https://docs.aws.amazon.com/chime-sdk/latest/APIReference/API_messaging-chime_CreateChannelFlow.html) API documentation.