<aside> 💡 Follow-up notifications and promotional messages will be sent from the registered phone number. If you wish to send promotional messages or send messages using a business number, make sure to configure your settings!
Overseas services/ Settings for overseas customers
FAQ - Registering a Sender ID
<aside> 👉 Why do I need to register a Sender ID?(Note : Sender ID is not supported in the US) Following the implementation of the Sender ID Pre-Registration system (16th of October 2015), sending restrictions apply to numbers that have not been pre-registered. To send SMS messages, you must register your Sender ID in advance.
If you do not pre-register your number:
Configure this setting for overseas services and/or to send SMS Text Messages to overseas customers. If you only use services within Korea, you may skip this step.
<aside> 💡 Note : Sender ID is not supported in the US
How to configure Sender ID settings
Register your Sender ID