SNS SMS intermittent failure on specific MNC in sweden (Telia, Tele2)

Question

Hi  
  
Since the 29th of september we've been receiving intermittent failures when sending sms. The content in sms are similiar and the api calls the same.  
  
The only two mnc's that has failed is 1 and 7 in Sweden. We mostly send sms to carriers in Sweden. Tough mnc 1 and 7 (Telia and Tele2 respectively) stands for about half the amount of sms we send.  
  
Example error:  
{  
    "notification": {  
        "messageId": "35f21fc4-a893-5c45-8689-460f1f92be24",  
        "timestamp": "2021-09-27 12:10:41.446"  
    },  
    "delivery": {  
        "mnc": 1,  
        "numberOfMessageParts": 3,  
        "destination": "+4670...",  
        "priceInUSD": 0.21768,  
        "smsType": "Transactional",  
        "mcc": 240,  
        "providerResponse": "Unknown error attempting to reach phone",  
        "dwellTimeMs": 385,  
        "dwellTimeMsUntilDeviceAck": 3573  
    },  
    "status": "FAILURE"  
}  
  
Edited by: misterorange on Sep 30, 2021 1:47 AM  
  
Edited by: misterorange on Sep 30, 2021 1:48 AM

misterorange · Answer

Amazon has responded that it is due to our sms containing links and some nordic operators has begun blocking sms with links in them.  
To get pass this we were told to create a template of the contents that they will send to the operators.

SNS SMS intermittent failure on specific MNC in sweden (Telia, Tele2)

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