LINE user management
The LINE user ID is stored on the user profile attribute called
native_line_id, which is used to send messages to a user on the LINE channel. This article covers how to set and find thenative_line_idattribute.
Customer user data is represented in a Braze user profile. A user profile stores information and attributes about a company’s users, such as first names and email addresses.
When you send LINE messages through Braze, Braze uses the native_line_id attribute to identify what users to send the message. When LINE sends Braze webhook events, such as when a user follows a channel or replies to a message, the native_line_id is used to look up the corresponding user profile.
LINE user IDs are distinct by LINE provider. A specific user will have different LINE user IDs for each provider they follow. Users are unlikely to know their LINE ID (unlike their email or phone number), as they change for each brand they follow.
Setting the native_line_id attibute
There are a number of scenarios where native_line_id is set on the user profile, which are outlined below.
| Scenario | Whether user profile exists with native_line_id |
Outcome |
|---|---|---|
| A user follows a LINE channel | No | An anonymous user profile is created (merging will be required): - native_line_id is set to the user’s LINE ID - line_id user alias is set to the user’s LINE ID- The user is subscribed to the channel’s Braze subscription group |
| A user follows a LINE channel | Yes | All user profiles with the native_line_id:- Are subscribed to the channel’s Braze subscription group |
Company uses user CSV upload with a native_line_id column |
No | If no user profile exists for the specified external_id or user alias:- native_line_id is set to the specified value- All other attributes specified in the CSV are set on the user profile |
Company uses user CSV upload with a native_line_id column |
Yes | If a user profile exists for the specified external_id or user alias:- native_line_id is set to the specified value- All other attributes specified in the CSV are set on the user profile - Multiple profiles have the same native_line_id |
Company uses /users/track endpoint and specifies native_line_id attribute |
No | If no user profile exists for the specified user (specified by external_id, user_alias, braze_id or email):- native_line_id is set to the specified value- All other attributes specified in request are set on the user profile |
Company uses /users/track endpoint and specifies native_line_id attribute |
Yes | If a user profile exists for the specified user (specified by external_id, user_alias, braze_id or email):- native_line_id is set to the specified value- All other attributes specified in request are set on the user profile - Multiple profiles have the same native_line_id |
| Company requests Braze run the subscription status syncer | No | If a user LINE ID is returned from LINE that doesn’t have a corresponding user profile in Braze, then an anonymous user profile is created: - native_line_id is set to the user’s LINE ID- line_id user alias is set to the user’s LINE ID- The user is subscribed to the channel’s Braze subscription group Note that if a user with the same LINE ID is later created, there will be duplicate users, but both will have the correct LINE subscription status. User merging can clean up your user base in these cases. |
| Company requests Braze run the subscription status syncer | Yes | If a user LINE ID is returned from LINE that has a corresponding user profile in Braze: - The user is subscribed to the channel’s Braze subscription group |
Finding the native_line_id
When viewing a user profile in the Braze dashboard, you can see whether it has the native_line_id attribute set by going to the Engagement tab > Contact Settings section > LINE section.
If the native_line_id has been set, it will under LINE User ID. Otherwise, it won’t appear.
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