An advertiser enables target cost-per-acquisition (CPA) bidding and notices that conversions decrease. What might cause this?

An advertiser enables target cost-per-acquisition (CPA) bidding and notices that conversions decrease. What might cause this?

Answer

•  The target CPA bid was lower than the recommended amount.
•  The conversion-tracking code snippet was not added to the site.
•  The cost-per-click (CPC) bid was lower than the recommended amount.
•  The target CPA bid was higher than the recommended amount.