An advertiser enabled Conversion Optimizer and noticed a decrease in the number of conversions. What could have caused this decrease to occur?

1. The specific Conversion Optimizer code snippet was not added to the site.
2. The cost-per-click (CPC) bid was lower than the recommended amount.
3. The ads in the campaign are waiting to be approved.
4. The maximum cost-per-acquisition (CPA) bid was lower than the recommended amount.

Correct Answer:

• The maximum cost-per-acquisition (CPA) bid was lower than the recommended amount.