Twilio Message Failure Incidents

W2H alerts study staff if a text did not go through with the error we received from Twilio, our text messaging vendor. Here are some common errors from text messages failing to be delivered through Twilio and what they mean:

If you encounter a message failure incident from Twilio that isn't on this list, please visit their website https://www.twilio.com/docs/api/errors#3-anchor to find out more.