Greeting message is a pre-defined welcome message which displays at the top of your chat window.
Log into your account and go to Live Chat portal;
Click Campaign at the left menu;
Note: If you have multiple campaigns, please double check the name of the campaign in the upper-right corner of the page and make sure that you’re customizing the correct campaign.
Click Chat Window;
Then you can customize Greeting Message;
Click Save Changes to save the setting.
Note: You don’t need to repaste the live chat code to make the setting take effect.