The canned message is used to store the frequently typing text to save the user time and improve the chat quality.
To add the dynamic text in the canned message, do the following:
Note: The same can be used in embed configure messages and APIs.

Example:
To store a greeting message with the time period of the visitor. Click on the Add button of the canned message, enter the message along with the smartnow dynamic text and click on the save button.

When displayed to the visitor, the time period of the visitor will be calculated and the message will be customized accordingly.