How to send SMS from Chat flow in Studio

Question

I have a studio flow that receives chat messages (from Whatsapp) and forward the conversation to Flex.
I'm trying to send a SMS notification to a hard-coded number as this happen.

The issue is that the SMS is never sent and the Send Message widget fails with the following log:
Failure sending message: Chat service or channel parameter missing

I understand that it's probably because the flow has a Chat context and that the widget expects a Chat Service. But I want to send a SMS.

I tried to configure the Send Message widget like this:

• SEND MESSAGE FROM and SEND MESSAGE TO set and all other config fields empty
• SEND MESSAGE FROM and SEND MESSAGE TO and PROGRAMMABLE CHAT SERVICE with a Messaging Service ID (which doesn't really make sense but hey...)

Neither worked.

How can I send a SMS from a Chat flow in Studio?

Answer 1

I was just able to knock up a quick Studio Flow that receives messages from WhatsApp and sends out an SMS to a hard-coded number and it worked for me. The way I did it was to hard code both the Send message from and Send message to numbers in the Messaging & chat config section of the Send Message widget, like this:

In this case you must ensure that the Send message from number is a Twilio number that is able to send SMS messages.