wpcrm_system_add_calendar_entry
The wpcrm_system_add_calendar_entry filter allows plugins to add entries to the calendar shown on WP-CRM System > Dashboard.
This filter is passed four variables:
- $calendar: outputs the HTML required for the calendar
- $month: the month the event occurs in
- $list_day: the day of the month the event occurs on
- $year: the year that the event occurs on