Status	Status Description	Billable/Non-Billable
Delivered	Delivered numbers	Billable
Absent subscriber	These are the users who are continuously coming in/out of the network because of which the message did not get delivered. We retry the message for 4 hours from the gateway and if it still fails, then the same status is updated in the reports.	Billable
Invalid subscriber	These are the users for whom we received a response from the operator stating that the number is invalid when we tried sending the message. ii) There can also be a case when the message is sent to a 10-digit mobile number, but the number is not active. It may also be a case that the number is still with the SIM card seller and has not been purchased yet. iii) The message may have been sent to a number which is not a valid 10-digit or 12-digit (with ‘91’ prefix) mobile number.	Billable
SMS/Message Inbox Full	These are the users whose handset inbox was full when the message delivery was attempted.	Billable
Blacklist	These are blacklisted numbers at the operator end.	Non-Billable
NDNC Reject	These are the numbers registered in the NCPR database.	Non-Billable
Undelivered	These are the users for whom the message failed after multiple retries due to various reasons such as operator-end or user-end issues.	Billable
Submitted to Network	These are the messages for which we have not yet received the delivery reports from the operator.	Billable
Dropped	These are the messages that failed due to template mismatch issues.	Non-Billable
Expired	These are the numbers to which the messages were not delivered even after multiple retries from the operator end due to remote operator-side issues.	Billable
Force Expired	These are the numbers to which messages are dropped due to rules in our system, invalid numbers in the uploaded base, or upon client request to drop the messages.	Non-Billable
Duplicate Message Drop	If the same message content is sent to the same mobile number within 30 minutes, the duplicate messages will be dropped.	Non-Billable
DLT Sender ID Failure	Sender ID mismatched for the message published with the DLT template ID.	Billable
DLT Template Failure	There is a mismatch between the message content and the template uploaded on the DLT portal.	Billable
DLT URL Failure	URL is not whitelisted on the DLT portal.	Billable
DLT SE Time Bound Failure	SMS was sent outside the DND window (DND window: 9:00 PM to 10:00 AM).	Billable
DLT Chain Failure	PE-TM chain not approved on the DLT portal.	Billable
Pending	These are SMS queued at Netcore.	Non-Billable