How the passcode is hashed and stored in Person table?

The create passcode method automatically stores the data in the person table.

ok. So, if I use CallMethod for calling CreatePassCode method, passcode will be automatically stored in database. But, if I want to pass this passcode to next step of process, how can I do that because there is no OutParam in CallMethod process task

Can I read this passcode from database and mark it as Encrypted so that service automatically decrypts it and shows original value? I read this in one of the posts

https://www.quest.com/community/one-identity/identity-manager/f/identity-manager-forum/5640/decrypt-data 

You need to wrap the method call into a script and call that script instead of using the CallMethod process task.

Will not work. A hash by definition is not reversible.

I had called the method through script before. I was able to get the passcode but it was not storing the passcode in table

You need to save the person object after calling the method.

Thanks Markus for help.