The No field displays the serial number of an incident. The number is assigned to an incident when one is created, and it is unique.
The History tab displays information on events relating to incident processing (such as incident status changes or incident recovery from the archive). Entries about events relating to incident processing are highlighted in blue. Each entry includes the date, time, and author of changes.
In this entry field, you can specify additional information relating to incident processing. Clicking the OK button saves information entered in the entry field.