Receiving SMS Multiple times in a gap of 1 hr

[NeelamB91]

Hi Everyone,

Hope you all are doing great !!!

Apparently we observed that for a SMS campaign , same SMS is being received 3 times in a row in interval of 1 hr . We have raised this concern with SMS vendor team and they informed us that they have received 3 submit_sm requests from Adobe end with 3 different IDs. So we checked it at our end and found that only single record is present in targeted base not multiple.

PFB screenshot shared by vendor :

What could be the issue ?  Why multiple requests are getting sent by Adobe ?

Kindly help us to resolve the issue.

Thanks and Regards,

Neelam

[Denis_Bozonnet · Accepted solution]

Hi @NeelamB91 

SMS is always tricky to debug. In your case, the fact that the SMS are sent 1 hour to each other would indicate a retry on Adobe Campaign side.

Retry will happen if Adobe does not receive the response (SUBMIT_SM_RESP) in the timely manner to the send request (SUBMIT_SM). I would say in your case, you should have no SUBMIT_SM_RESP received within the expiration time (configured on the SMPP External Account)

Check whether you have SUBMIT_SM_RESP with the same ID than the faulty SUBMIT_SM, if you've got SUBMIT_SM_RESP, check the date & time these were received and compare with the "Expiration period of the MT" in the external account. if the response is received AFTER that period, the delivery is considered a failure and retry will kick in.

I suspect this is what happens for you.

Check this great video Adapt SMS connector to your SMPP provider and the associated documentation.

Hope this helps,

Thanks

Denis