Historical Performance Metrics
The campaign targets are not fixed to a certain time (e.g. quaters/months). If new targets are added, all historical performance data gets updated according to a new target meaning that incorrect data is represented.
Sarah Cullerton commented
Would LOVE this. We have goals that change each quarter as our volume is highly seasonal. Right now we have to have a new campaign every quarter and it is very clunky for all types of users.