Need help configuring the Delete Document Smart Service or defining an expressio

Hi there, how do you configure a loop inside a process model? Can you point me to a link? 

Very simply you have process flow reach an XOR gate.  If one path is chosen, it leads to the end, if another path is chosen it leads to a node you've already completed; you'll complete it again and go to the XOR gate.

You want to point the looping flow to a Script Task or User Input task; it causes problems when you try to loop back to gateways.  Even if you have to make a script task that does nothing.

Very simply you have process flow reach an XOR gate.  If one path is chosen, it leads to the end, if another path is chosen it leads to a node you've already completed; you'll complete it again and go to the XOR gate.

You want to point the looping flow to a Script Task or User Input task; it causes problems when you try to loop back to gateways.  Even if you have to make a script task that does nothing.