Twilio isn't producing reply SMS messages from generated TwiML

Question

I'm trying to get basic SMS responses working on my server. I have a route set up at http://feedingforward-staging.herokuapp.com/api/sms that correctly produces the following TwiML when you make a GET request in the browser:

<?xml version="1.0" encoding="UTF-8"?><Response><Sms>Hey Monkey. Thanks for the message!</Sms></Response>

I've configured my Twilio number to point to this URL, and when I send a text to that number, the server does get the request and processes it with code 200 (OK). However, Twilio does not use the TwiML to send a response text.

Any idea why?

score 3 · Answer 1 · answered Apr 10 '13 at 19:46

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On your Twilio Dashboard, visit Logs -> Notifcations here: https://www.twilio.com/user/account/log/notifications and see if there's any sort of message generated when you send a message.

Disclosure: Twilio employee here.

answered Apr 10 '13 at 19:46

CaseySoftware

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Hi CaseySoftware, can you please have a look at my question here.. http://stackoverflow.com/questions/38370533/twiml-app-invoke-aws-lambda-when-user-replies-stop-start-for-twilio-number – Vamsi Challa Jul 14 '16 at 09:42

score 1 · Accepted Answer · answered Apr 10 '13 at 20:41

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Fixed it with the help of one of the awesome customer service reps at Twilio.

My application was returning headers to Twilio with the content-type set to 'application/json'. I changed it to 'application/xml' and it worked!

answered Apr 10 '13 at 20:41

Andrew

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How did you determine the error? Did you use the Logs -> Notifications? – leggetter Apr 11 '13 at 13:56
No, the customer service rep made some calls to my API and examined the headers that came back. – Andrew May 02 '13 at 18:54
so no code was changed, then? Was the configuration changed? Odd solution. – Nicholas Saunders Jun 10 '23 at 17:38

Twilio isn't producing reply SMS messages from generated TwiML

2 Answers2