How to Check SMS Delivery Statuses?

How to Check SMS Delivery Statuses?

Overview

SMS Delivery Status Tracking helps monitor the effectiveness of SMS communication sent to leads and prospects.

  • Personalized Messaging: Use tokens to send customized SMS for better engagement.

  • Transactional & Promotional Communication: Supports OTPs, registration updates, payment confirmations, event details, and more.

  • Multiple Sending Options: Send SMS via Automation, Lead Manager, Application Manager, or Raw Data.

This ensures reliable and efficient communication throughout the admission process.

Step-by-Step Guide to Check SMS Delivery Statuses

Accessing SMS Communication Reports

  1. Navigate to Marketing > Communication Performance:

    • Alternatively, In the menu search, type and select "Communication Performance."

  2. Filter by SMS:

    • Locate Job IDs to view different communication logs.

    • Click the filter button (top-right corner) and select SMS under "Medium of Communication."

  3. View SMS Logs:

    • Click on the Job ID for detailed SMS communication logs.

    • Navigate to "SMS Stats" to see the SMS delivery summary.

  4. Check SMS Status Descriptions:

    • Hover over a status to see a detailed description.

    • Use filters to view SMS logs based on specific delivery statuses.

Understanding SMS Statuses in Meritto

SMS reports in Meritto classify messages into the following categories:

  • Sent
    • All SMS successfully sent from Meritto.

  • Delivered
    • SMS was successfully delivered to the recipient’s handset.
    • Delivery Rate: Percentage of SMS delivered out of total sent.

  • Clicked
    • Tracks the number of users who clicked on a link within the SMS.
    • Click Rate: Percentage of delivered messages that were clicked.
    • Note: Click tracking works when using Meritto’s URL shortener.

  • Absent Subscriber
    • The number of communications failed due to the phone being switched off, due to the phone being out of coverage. Telecom services not providing service for a particular number.
    • Resolution: Confirm the receiver’s number.
    • The Absent Subscriber percentage indicates out of sent SMS how many SMS fall into this category.

  • Invalid Subscriber
    • The number of communications failed due to the wrong mobile number.
    • Resolution: Confirm the receiver’s number.
    • The Invalid Subscriber percentage indicates out of sent SMS how many SMS fall into this category.

  • DND (Do Not Disturb)
    • Total Number of SMS not delivered due to NDNC rejected or DND.
    • The DND percentage indicates out of sent SMS how many SMS failed because the number was registered under DND.
    • Below are the Possible reasons for DND.

S.No.

Status

Description

1

DNDNUMB

The mobile number is DND.

2

PRFT-NT-MTCH

Preference not matched. This error code is received for Service Explicit content only. When the end-user is registered under DND. This is completely based on the DND preference selected by the end-user.

3

REJECTED-MULTIPART

Validation fails [SMS over 160 characters] to DND number


  • Message Inbox Full
    • Total Number of SMS not delivered because the Inbox of subscriber was full.
    • The Message Inbox Full percentage indicates out of sent SMS how many SMS failed because the Message Inbox was Full.


  • Failures
    • The total number of SMS Failed under this category is mentioned below (SMS failed due to Absent Subscriber, Invalid Subscriber, DND, and Message Inbox Full are not included in this list as they are calculated separately).
    • To help you identify error codes and to identify reasons for failures here is a list of common error statuses received with a suitable description.

S.No.

Status

Description

Possible Resolution/Remarks

1

AWAITED-DLR

The mobile number has been accepted and submitted to the operator. Awaiting delivery report.

The operator has not shared the report. Wait at least 72 hours.

2

BLACKLIST

Number blacklisted at the operator level due to multiple DND complaints.

Always provide valid proof of user consent if a DND complaint is received.

3

EXPIRED

SMS expired after multiple retries.

The operator attempts delivery for 48 hours; message expires if undelivered.

4

FAILED

SMS failed due to roaming limitations or operator processing issues.

The operator retries for 48 hours; may fail due to international roaming.

5

HANDSET-BUSY

The subscriber’s handset is busy.

Try again later.

6

HEADER-NOT-REGISTERED-FOR-TEMPLATE

Sender ID and template ID mismatch on DLT portal.

Ensure the Sender ID matches the template ID registered in the DLT portal.

7

INVALID_TEMPLATE_ID / TL-ID-INVLD

Template ID is incorrect or missing.

Verify and update the correct template ID in the DLT portal.

8

INVALID-NUM

Invalid number detected along with valid ones.

Confirm the receiver’s number.

9

INV-NUMBER

Invalid phone number.

Confirm the receiver’s number.

10

MAX-LENGTH

Message exceeds 1000 characters.

Reduce the message length.

11

MOB-OFF

Subscriber’s phone is switched off.

Operator retries for 48 hours before message expiry.

12

NET-ERR

Network error at the carrier level.

Temporary issue; retry later.

13

REJECTED

SMS rejected due to blacklisted number.

The operator has blacklisted the number.

14

SENDER-ID-NOT-FOUND

Sender ID not registered.

Check DLT portal registration or vendor portal configuration.

15

SERVER-ERR

Server error occurred.

Try again later.

16

SNDRID-NOT-ALLOTED

Sender ID not allocated.

Check if the Sender ID is registered in Meritto.

17

SNDR-NT-MTCH

Sender ID does not match Entity ID (PE ID).

Ensure Sender ID is registered under the correct Entity ID.

18

SNDR-NT-REG

Sender ID not registered at the operator level.

Check the DLT portal for Sender ID registration.

19

SPAM

SMS marked as spam by the recipient.

Monitor SMS content to avoid spam-like messaging.

20

TEMPLATE-BLACKLISTED

Template blacklisted at the DLT platform level.

Reapply for template approval in the DLT platform.

21

TEMPLATE-ID-NOT-FOUND

Sent content does not match any registered template.

Verify the template ID in the DLT portal and Meritto portal.

22

TEMPLATE-INACTIVE

The template is inactive on the DLT platform.

Reapply for template approval if necessary.

23

TEMPLATE-NOT-MATCHED

Sent message does not match the registered template.

Check the template registration on the DLT portal and update Meritto configuration.

24

TEMPLATE-VARIABLE-EXCEEDED-MAX LENGTH

Variable content exceeds 30 characters.

Ensure variable content stays under 30 characters.

25

TIME-OUT-PROM

Promotional SMS timed out due to TRAI restrictions.

Promotional SMS can be sent only between 9:50 AM – 8:50 PM as per TRAI.

26

UNDELIV

Message failed due to network issues.

Retry later.

27

SERIES-BLK

Number series blocked by the operator.

N/A

28

SERIES-BLOCK

Mobile number series is blocked.

N/A

29

NOT-OPTIN

Recipient not subscribed to the opt-in group.

N/A

30

OPT OUT-REJ

Recipient has opted out of subscription.

N/A

31

OUTPUT-REJ

Recipient has unsubscribed from the group.

N/A

32

MEMEXEC

Handset memory is full.

N/A

33

BARRED

Subscriber has enabled message barring or only accepts messages from a closed user group (CUG).

N/A

34

HANDSET-ERR

Handset does not support incoming messages or failed to receive them properly.

N/A


Points to Keep in Mind

  • Click tracking works only with Meritto’s URL shortener. Ensure links are properly formatted.

  • Delivery failures should be analyzed based on error codes. Check recipient details before resending.

  • DND and Blacklisted numbers cannot receive messages. Verify opt-in settings before attempting resends.

Conclusion

Monitoring SMS delivery statuses in Meritto allows you to optimize communication, resolve delivery issues, and improve engagement. Use Communication Performance Reports to track SMS status and troubleshoot errors effectively.


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