Articles on: FAQs

Why is undelivered SMS charged?

When is an SMS marked as "Undelivered"?


Sometimes, your message is mark as "Undelivered" because of the following common reasons:


  • The To number is unknown or no longer in service.
  • The 'To' number is unreachable - the device is likely powered down, out of the service area, or may not accept your messages.
  • The destination carrier is filtering out your messages for delivery.
  • Your message has been blocked from reaching the destination.
  • The destination is a landline phone, or the destination carrier can't be reached.


Why is undelivered SMS charged?


When a message is sent successfully from our platform but is not received at the end user's handset, we're already charged by the carrier. Therefore, you will be charged for a message if delivery is attempted, i.e., the message status is "sent," "delivered," "undelivered," or "delivery unknown."


Updated on: 23/09/2021

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