When should optimization be initiated in a campaign?

Initiating optimization in a campaign as soon as there is enough data to inform decisions is essential for maximizing performance and achieving the campaign goals. This approach allows for timely adjustments based on real-time insights rather than waiting for predetermined thresholds like budget limits or the conclusion of data collection.

Starting optimization early enables marketers to react to trends in the data, such as identifying which creatives, audiences, or placements are performing well. It supports continuous improvement and can help address underperforming elements of a campaign proactively. Moreover, regular optimization based on data insights can lead to refined targeting and better resource allocation, ultimately enhancing overall campaign effectiveness.

Other options suggest delaying optimization until various external criteria are met, which can hinder the campaign's potential for success. Waiting until reaching the budget limit or until all data is collected can lead to missed opportunities and ineffective spending, whereas optimization at the beginning of a campaign may not take full advantage of evolving data trends. Therefore, the strategy of starting optimization promptly with sufficient data aligns best with programmatic advertising principles.