we would like to run an Apex Code when the user changes the campaign status field to Completed. What is the best way to do that without stressing the system?

I saw it is possible to do it with triggers but I do not want it to run anytime the campaign is updated. Thanks, Marc

we would like to run an Apex Code when the user changes the campaign status field to Completed. What is the best way to do that without stressing the system?

I saw it is possible to do it with triggers but I do not want it to run anytime the campaign is updated.