At WhitiDigital, we successfully managed to optimize this campaign’s CPA through a series of strategic changes. For campaigns initially using a manual CPC bid strategy where the cost per conversion remained high despite refining keyword bids, we launched an experimental campaign with a target CPA bid strategy. This change helped us optimize the campaign and bring the cost per conversion within our desired limits. Additionally, we launched a Dynamic Search Ads (DSA) campaign targeting the landing page URL, which resulted in a lower CPA than our target, further enhancing our efficiency. For the mobile-targeted campaign, we set the bid adjustment for mobile devices to +100% while decreasing bids for computers and tablets to -100%. Conversely, we applied the opposite adjustments for another campaign to ensure optimal performance across different devices. To combat fraudulent clicks, we used specialized software to analyze and block suspicious IP addresses. We implemented ad scheduling and made negative bid adjustments during peak times of fraudulent activity. Additionally, we uploaded a bulk negative keyword list to avoid brand search queries and reduce wasted ad spend on competitor-related terms.
