These are the action types that have a due date – and so will appear in critical dates lists if something is entered in the due date field.
The Critical Issue type has a non-mandatory due date. If you enter a due date a critical date record will be created.
For all types: Critical dates records can be created by entering a reminder date.
NB. It is currently (at Sept 2017) possible to trick the system into adding due date for other actions but not recommended. This can occur when the action starts off as one type of action, and the user adds a due date and then changes the type.
Any action that has a due date or a reminder date will automatically generate a critical date record when its is edited and saved. These records appear in critical dates lists.
In Critical dates lists if the due date is today or in the past it will highlight in red
In Critical dates lists if the reminder date is today or in the past it will highlight in yellow
If the postponed checkbox has been checked, it removes highlighting from Due date and Reminder Date
Yes, as long as that is appropriate for your requirements. These records are generated from action records. Once a critical date record has been created it has a life of its own. So you can delete the critical dates records without affecting the action record.
Once a critical date record has been created it has a life of its own. Further edits of actions will probably create a new critical date record without deleting the original. Critical date records need to be managed independently of action records if you make changes to action records.