DELIVERY STATUS DESCRIPTIONS

Here are the different delivery descriptions on the outbox:

AbsentSubscriber

These are invalid (do not exist) or inactive Safaricom numbers. The status is sent back from the MNO 18 to 24 hours after a message has been sent.

DeliveredToTerminal

These are messages that have been delivered to the specified phone numbers (Safaricom, Airtel, and Telkom numbers). The status is sent back from the MNO immediately after the message is delivered.

DeliveryImpossible

These are similar to AbsentSubscribers, but specific to numbers that are inactive or blocked. The status is sent back from the MNO in seconds or minutes.

SenderName Blacklisted

These are Safaricom numbers that have blacklisted a sender ID or blocked all promotional messages.

SentToNetwork

These are numbers that are either in a poor network coverage area or turned off. Also, messages might have been delivered, but the Mobile Network Operator failed to send back a delivery report.

Unknown

These are Airtel and Telkom numbers that are either unreachable, inactive, or invalid. Airtel and Telkom provide a blanket response of "Unknown" for such numbers.

Scheduled

These are messages either queued pending delivery or set to be delivered on a later date and time.