# LINE notification messages
The functions described in this document can only be used by corporate users who have submitted the required applications. To use it with your LINE Official Account, contact your sales representative or contact our Sales partners (opens new window).
LINE notification messages is a service that enables you to send messages to users by specifying their phone number, even if you don't know their User IDs. Even if a user hasn't added your LINE Official Account as a friend, you can send them messages from your LINE Official Account.
The purpose of use for LINE notification messages is limited to those that LINE deems useful and appropriate for users. It can't be sent for commercial or advertising purposes. For more information, see LINE notification messages UX guideline (opens new window) (Japanese only) in LINE for Business.
# Conditions for sending LINE notification messages
LINE notification messages are delivered to LINE accounts that meet all of these conditions:
- The phone number registered in the LINE account matches the phone number held by the company
- It's been verified once that the phone number registered in the LINE account is valid (through SMS authentication) within a certain period of time
- LINE account owner agrees to receive LINE notification messages
- LINE account owner hasn't blocked your LINE Official Account
For more information, see How to receive LINE notification messages (opens new window) (Japanese only) in the LINE user's guide.