For a Google App campaign optimising to a tCPA of £10, what would be the recommended minimum budget?

For a Google App campaign optimizing to a target CPA (tCPA) of £10, the recommended minimum daily budget is £100. Google Ads generally recommends setting your daily budget at least 10 times your target CPA to allow the system enough data and flexibility to achieve your optimization goals. This ensures that the campaign has sufficient budget to generate a meaningful number of conversions and learn effectively. A budget of £25 or £50 would be too low, potentially limiting the campaign's ability to acquire conversions at the target CPA. While £200 would also work, £100 is the minimum recommended to meet the 10x tCPA guideline.