Google is testing a new Performance Max channel setting that could give advertisers a direct way to tell the algorithm which channels they value more — a notable departure from PMax’s traditionally automated approach to channel allocation. The feature, currently described as being in alpha testing, includes adjustment controls for Search, YouTube, Display, Discover, Gmail and Maps. What’s new. The experimental “Channels” setting appears to let advertisers make positive or negative adjustments for individual Performance Max channels. A positive adjustment relaxes the CPA the system is willing to accept for that channel, effectively signaling…
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