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What Causes AN SMS To Fail?

Created by: Jacob Hicks

Modified on: Wed, Sept 08, 2021 at 1:56 PM

A text message in a campaign can fail due to the following reasons:

1. Twilio rejects the number
2. Bad/ landline number
3. Message not sent by Twilio
4. Message sent but never delivered

For more information on why a particular sms failed:

1. Log into your Twilio account
2. Click the cog icon at top-right and choose Sub-Accounts then select the sub-account
3. Click the circle icon with three dots in the left column and select Programmable SMS
4. Click Logs then set your timeframe and filter by Status = Failed or Status = Undelivered
5. When you find the message, hover over the question mark icon to see error code/explanation