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A channel is how an interaction reaches a customer. A flow defines the actions performed through those channels.

Resource versus action

A phone number, sender ID, or WhatsApp connection enables a channel. The flow action determines what to do with it. Having a resource does not automatically send a message or place a call.

Choosing a flow

Use Voice for steps that happen during a call. Use Multichannel to coordinate work outside a single call, such as a condition followed by an SMS or a Voice sub-flow. The flow type cannot be changed after creation. You can create SMS-only, WhatsApp-only, or combined campaigns using a Multichannel flow. Configure SMS and WhatsApp messages as actions within the flow, and add a Voice sub-flow when calls are needed. Channel tests perform real activity and may consume credits. Next: Send your first SMS, Make your first call, and WhatsApp.