Can someone please tell me like how we can retrieve SuperSessionID in classMethod ??

(for SessionID i now the syntax [Set SessionID = ""_$get($$$JobSessionId)]  but for SuperSessionID i don't know.)

Now i want to use SuperSessionID instead of SessionID,  outside the package. 

Also one confirmation that "SessionID keeps same in entire message flow or it varies ?? i heard that SessionID may change in diff instances."

please explain me which ID keep unique (SessionID or SuperSessionID)  ??

I want to filter the message base upon that only...

how we can retrieve SessionId in classMethod ?? 

i want to use sessionid outside the package...

00:41:54.088:Ens.Director: Queued messages are being saved in the suspended production.
00:41:54.089:Ens.Director: Production 'MemberBPL.MemberProduction' suspended.

I have created the business service, process and operations and message was going through service to operation but some message got queued that'swhy production is not stopping correctly. neither it's deleting not it's stopping fully.

I have also trying purging data under manage production.

Please help me here.... how i can delete this production. ??