Use this request to set the default settings for sending SMS messages and receiving daily SMS usage reports.

You can override some of these settings for a single message when you use the Publish action with the MessageAttributes.entry.N parameter. For more information, see Publishing to a mobile phone in the Amazon SNS Developer Guide.

To use this operation, you must grant the Amazon SNS service principal (sns.amazonaws.com) permission to perform the s3:ListBucket action.