WHMCS – To-Do List
The to do list allows you to add tasks that need to be carried out, the dates they are due for completion by and the admin they are assigned to. To-Do Items can also have an unlimited length description for storing additional information about the task. The To-Do list is accessed via Utilities > To-Do List. Due items are shown on the admin homepage widget.
Enabling/disabling of automated domain-related To-Do entry creation is controlled in the General Settings.