# User Attributes
Use attributes is used to store conversation state and identify a user. You can access an attribute using the double braces syntax in the following way:
Here is a list of default attributes names accessible from within the conversation scope by channel:
|Website||first_name, last_name, email, phone||These are a placeholder for website bot and updated automatically when a value is set or updated using |
|first_name, last_name, profile_pic, gender, locale, timezone||--|
|Viber||first_name, last_name, language, country||--|
How to obtain a user Id?
Obtain a user Id, using the double braces syntax as
user_id. User id for a channel is unique and can be used to track or send a message using
It is also possible to define your own custom attributes using
User Attribute plugin.
Use attributes to trigger a conditional flow as shown below:
Or as a filter criteria to send a message to a specific group of subscribers: