You can use the template variable syntax in order to display dynamic information in your messages based on a set of pre-defined variables that are linked to the current user sending the message, or the target chat, contact, metadata and date.
Template variables can be used in quick replies, automatic replies and messages sent through the API or web chat.
You can display dynamic information in messages based on the following entities:
user: current user sending the message
chat: target chat that will receive the message
contact: target contact that will receive the message
date: current date when the message is delivered