https://experienceleague.adobe.com/en/docs/experience-cloud-kcs/kbarticles/ka-23023?sdid=WG1BJB88&mv=social
Status of SMS delivery in nmsBroadLogRcp is not "Received on mobile" | Adobe Campaign
The SMS delivery status in nmsBroadLogRcp does not change to "Received on mobile", even if the user has received the SMS.