Random Pin Generator

Mark's pipeline sample works well, I use a version of it to send out random surveys on record save. Complete this with a check box/flag to record if you have already generated the pin or not.  e.g. pipeline would trigger on update, set the random pin to the jinja output, set the "it's already set" flag to TRUE and then end.  You'd trigger only on record update where the "it's already set" flag is false.