How to reopen a case automatically when a new email is received(using Process Definitions)?

Question

Hi, 
 
 I'm using Sugar 8.0.3 Enterprise, how can i re-open an existing closed case(Status: Closed) when a new email imported via email to case functionality has the matching Case Number[Case Macro] on the subject ? 
 I note that Emails is not a module that can be configured for the Process Definitions(SugarBPM) in Sugar 8x , however it is on Sugar 10x 
 Regards, 
 Vijay

Vijay Nagarajan · Answer

Sugar 8 hits EOL in October, so I strongly recommend you plan an upgrade for this customer. 
 If that is not an option, here are some I can think of: 
 
 Create a SugarLogic field on the Cases module which counts the number of related Emails. Then design a SugarBPM process def which listens for a change on that newly created SugarLogic field, and reopens the case accordingly if it is closed. 
 Legacy Workflow (can't recall if its already blocked in v10) - but an "after time elapses" one can pick up the condition of a new email where a related case status = closed. 
 A logic hook. 
 
 Good luck! 
 Adam