For information on the general use of the WHMCS Notification System, please read the following article: WHMCS Notifications

When using the module, there is nothing special to note. It works exactly as you imagine it: A complete integration into the WHMCS Notification system.

In addition to the basic functions of WHMCS, the module offers 3 additional configurable settings:

Option: Message Color

This option defines the border color in which the message should be displayed.Green, yellow and red is available to choose from.

Option: Replace Webhook URL

This option allows you to override the default Webhook URL to send messages to other channels or to another team.

Option: Custom Message

This option overrides the default text of WHMCS with your own text. 
This has no influence on the facts list. Only the main text is overwritten.