SMS Success response format

Hi, I am trying to fill the field for a successful response in SMS. The following is an example response that I get from my SMS gateway. How would use this in the SMS config?

{
   "data":[
      {
         "status":"OK",
         "error":"0",
         "smslog_id":"1655",
         "queue":"6efe5dd833205e4717e43d19c44a3c24",
         "to":"+254700123456"
      }
   ],
   "error_string":null,
   "timestamp":1594024620
}

Hi,

try to use this: “error_string”:null as successful response.

It worked . Thank you