1. Make a variable. type: quest. Just call it "quest1" or something
2. Create the quest in a trigger.
3. Immediatly after the "create quest" action, set the variable (Quest1) as "last created quest." using the "set variable" action
Then make this trigger:
Event:
Region- unit enters region
Condition:
Whatever condition, wether its a certain unit (like a hero) or just a unit owned by a player and so forth
Action:
Quest- mark (Variable:Quest1) as completed. Followed with any other actions.
-VGsatomi