Megan enabled Conversion Optimizer in all six of her campaigns. How can she tell if Conversion Optimizer is improving campaign performance?

1. Compare average CPA and conversion rate before and after using the Conversion Optimizer.
2. Monitor overall changes in clicks received.
3. Install new Conversion Tracking code.
4. Enable and disable Conversion Optimizer every other day to observe differences.

Correct Answer:

• Compare average CPA and conversion rate before and after using the Conversion Optimizer.