An advertiser identifies a consistently high-performing ad set within a campaign. What specific budget adjustment at the campaign level, using Campaign Budget Optimization (CBO), would allow for automated, strategic allocation to this high-performing ad set without manual daily intervention?

The specific budget adjustment at the campaign level using Campaign Budget Optimization (CBO) to allow for automated, strategic allocation to a consistently high-performing ad set without manual daily intervention is to implement an Ad Set Spend Limit, specifically a minimum daily or lifetime spend limit, on that particular high-performing ad set. Campaign Budget Optimization, or CBO, is a feature that optimizes the distribution of your campaign's total budget across all ad sets within that campaign. Instead of setting individual budgets for each ad set, you set one overarching budget at the campaign level, and CBO's algorithm automatically allocates more of that budget to the ad sets and ads that are performing best, aiming to achieve the most efficient results for your campaign goal. An ad set is a grouping of ads that share common targeting, budget, schedule, and bidding. While CBO naturally tries to optimize spend towards better-performing ad sets, an Ad Set Spend Limit provides a more direct control for strategic allocation. When you set a minimum spend limit for the identified high-performing ad set, you are instructing CBO to ensure that at least a specified amount of the campaign's total budget is spent on that particular ad set each day or over its lifetime. For example, if your CBO campaign budget is $100/day and your high-performing ad set has a minimum spend limit of $30/day, CBO will first allocate at least $30 to that ad set. The remaining $70 will then be dynamically distributed by CBO across all ad sets in the campaign, including the one with the minimum limit, based on real-time performance to maximize results. This guarantees that your high-performing ad set consistently receives a baseline level of investment, ensuring it continues to deliver results, while CBO still has the flexibility to optimize the rest of the budget without requiring you to manually adjust budgets daily. You can optionally set maximum spend limits for other ad sets if you wish to restrict their spend, further ensuring that more budget is available for the high-performing ad set, but the primary tool for guaranteeing spend on a specific performer is the minimum limit.