"For countries that require an alphabetic sender ID, the message displays NOTICE as the sender ID." http://docs.aws.amazon.com/pinpoint/latest/userguide/channel

"For countries that require an alphabetic sender ID, the message displays NOTICE as the sender ID." http://docs.aws.amazon.com/pinpoint/latest/userguide/channels-sms-countries.html http://docs.aws.amazon.com/pinpoint/latest/userguide/channel...