I created:
- date/time custom field - this will copy the last modified date of cases via the WFRs below if the edit is made via case comment and email only
a. WFR1 Case Comment Object- (Case: Status NOT EQUAL TO Closed) AND (Case Comment: Created Date EQUALS TODAY) Field to Update: date/time custom field Formula Value : NOW ()
b. WF2 Email Message Object - (Case: Status NOT EQUAL TO Closed) AND (Email Message: Message Date EQUALS TODAY) AND (Email Message: Status EQUALS New,Read,Replied,Sent) Field to Update: date/time custom field Formula Value : NOW ()
number formula field - serve as a counter which shows the number of days since the case was last modified
Time Based WF - this will update the case status to closed if "number formula field" is greater than 1
(Case: Status NOT EQUAL TO Closed) AND (Case: Case Owner NOT EQUAL TO Support Queue) AND (Case: number formula field GREATER THAN 1)
Time Dependent WF Action : Field Update 1 Day After Rule Trigger Date Field to Update: Case: Status New Field Value: Closed
Unfortunately I can't make it work.