Plivo is a Pay-As-You-Go API platform. Plivo relies on its extensive carrier network to deliver messages successfully. In some cases, messages may be sent from Plivo but are not received at the end user's handset. Plivo charges for messages that are successfully 'Sent' out of the Plivo platform.
Why are we charged for Undelivered SMS or SMS which are in Sent/ Delivered state but never reached the destination mobile number?
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