Somehow I created a new Assignment Set in Oracle Inventory

Hello Folks!

In Oracle Inventory Navigator, Assign Sourcing Rules, I typed in PURCH_3178 which is a "good sourcing" rule in the Assignment Set yellow field and hit save. I  meant to hit the flash light. So now there is an assignment set as PURCH_3178 and every time you go to the flash light when you want to assign a sourcing rule you have to pick between the PURCH_3178 and "Assignment Set" (We always use "Assignment Set"). It says I have to purge the Assignment Set PURCH_3178, but the Purge button is not active.

Thank you

Roy