Step 3: Complete Twilio integration between your Lex V2 bot and Twilio

Use the Twilio console to complete the integration of your Amazon Lex V2 bot with Twilio SMS.

Open the Twilio console at https://www.twilio.com/console .
From the left menu, choose All Products & Services, then choose Phone Number.
If you have a phone number, choose it. If you don't have a phone number, choose Buy a Number to get one.
In the Messaging section, in A MESSAGE COMES IN, enter the callback URL from the Amazon Lex V2 console.
Choose Save.

Next step

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Step 2: Integrate the Twilio message service endpoint with the Amazon Lex V2 bot

Step 4: Test the integration between your Lex V2 bot and Twilio