Advanced105 minutesStep 6Pro
CBO Budget Concentration: What to Do With Dominant and Leftover Ads
When CBO concentrates spend in one ad set or ad, do not force an even split. Use a two-level allocation read, valid orders, CPA, and an isolated test to trust the dominant, isolate the leftover, restructure, or stop.
6
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6/8 lessons
Author
Ranfeng WeiLast reviewed
2026-07-11
Review scope
Reviewed against Shopify, Google Search, ads, analytics, and ecommerce operating workflows.
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TL;DR: When CBO concentrates spend in one ad set or ad, do not force an even split. Use a two-level allocation read, valid orders, CPA, and an isol
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