A travel company launched a Conversion campaign for an upcoming holiday vacation special. The promotion is pacing to spend in full, but it is not reaching KPI goals. The campaign is set up using the following:Image ads with their most popular hotel packages.The Pinterest tag installed. Custom bidding. Keyword and interest targeting. What strategy can the media planner use to optimize the campaign? (select one)

The selected answer is correct because Pinterest Performance+ bidding (formerly known as automatic bidding) allows the platform's machine learning models to adjust bids in real-time to maximize the number of conversions at the lowest possible cost. In this scenario, the campaign is spending its full budget but failing to meet KPI goals, which suggests that the "Custom bidding" strategy is likely setting bids either too high (wasting budget on expensive impressions) or incorrectly for the specific users most likely to convert. By switching to Performance+ bidding, the system can leverage signals from the Pinterest tag and existing keyword/interest targeting to find the most efficient auction opportunities, ensuring that the spend is redirected toward the highest-performing hotel packages and improving the overall return on investment.