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What are failed numbers?

Michael Lepinay avatar
Written by Michael Lepinay
Updated this week

When sending a message to a large list, it's common to have a few failed numbers, or subscriber numbers that didn't (or couldn't) receive your message.

Common reasons for failed numbers

  • Mobile number has been deactivated by their wireless carrier.

  • Landline number (typically from a third-party integration, ChMS, or an imported file).

  • Message has been filtered out by the recipient's wireless carrier. Learn more about carrier filtering here.

  • Some contacts may have short-code messaging blocked with their wireless plan (often unbeknownst to them). If you use a short code, we recommend using a long code as a fallback option.

You can view failures by going to the Messages page > Select your message > Scroll down to the Message Activity table > Set the Filter by status to Failed.

Credits used for failed messages are automatically reimbursed within a few seconds. If you'd like more info on why a message failed, reach out to our team and we can look into it for you.

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