Under what specific circumstance is CPA bidding the most advantageous bidding model for a Quora Ads campaign?

CPA bidding is most advantageous when you have sufficient historical conversion data within Quora Ads and a well-defined conversion funnel, because Quora's algorithm requires a learning phase to optimize towards your desired cost per acquisition. Sufficient data allows the system to accurately predict the likelihood of a conversion for each user and bid accordingly. Without enough historical data, Quora's algorithm cannot effectively optimize bids, and you risk either spending too much per conversion or not getting any conversions at all. CPA bidding is beneficial for campaigns with clear conversion goals, such as lead generation or e-commerce sales, where you're willing to pay a specific amount for each completed action and want to minimize manual bid adjustments, trusting the algorithm to achieve the set goal.