Delivery reports (DLR) usually take 24 hours to be updated.
It is worth mentioning that after Kuwait implemented mobile number portability (MNP) the delivery reports will not be accurate.
So they are not to be relied on to measure SMS campaign effectiveness or link open rate.
+ I sent a message but did not received it! why?
+ Why should you register Private SenderID for OTP?
+ How much does the API integration costs?