Getting success response from AWS SNS but SMS not delivered

Question

I am writing a simple program to send SMS using SNS service using the Javascript client.

var AWS = require('aws-sdk');
var sns = new AWS.SNS({
  region : 'ap-southeast-1',
  accessKeyId: '',
  secretAccessKey: ''
});
sns.publish({
      Message : "Test message",
      PhoneNumber : "Test number"
    }, function (err, data) {
        if(err) {
          console.log("Error - " + err);

        }
        else {
          console.log('Success - ');
          console.log(data);

        }

    });

I get a success and the data looks like

{ ResponseMetadata: { RequestId: '3b4e8c82-976c-55da-b1fa-dcd9ddc7254d' },
  MessageId: '47a38cbe-2047-5056-a615-dce56aecc0c1' }

However, the SMS does not get delivered.

What could be the problem?

Answer 1

The messages started getting delivered after 24th for fresh requests. The metrics dashboard is showing the data a day stale. On the dashboard It correctly showed that all the SMS deliveries had failed on 21st September, inspite of a positive response from API. This is making me reconsider my decision of using SNS for SMS.

Thanks all who helped.