WHY MY CPA GROWS WHEN I INCREASE MY SPEND? This is a very frequent question. Let's figure it out. When you just started your ad camaign it has no data. FB says you need at least 50 convertions during the last 7 days to complete a learning phase to perform properly and deliver your ads targeted to that very people who take action you need. No matter what, just an optimisation event. But this figure is contingent. In some cases you need times more events to complete a learning phase. It might be 50 - 100 - 172 or even 500 or more to stabilize delivery. You may check it in an adset diagramm. Well. As soon as your camaigns are stabilized you can increase your budget to achive more convertions, because the algorithm will be checking for more suitable accounts. It is tought and matches people who do what you whant them to do in your particular nieche. But this rule works only if your weekly spend coinsides with the desired CPA. For example your suitable CPA is 10$. So you need minimum 500$ a week (or even more) for one adset. Let's go further. You achived that very CPA and go scaling. So you increase budget and CPA grows as well. Why!? Because you immediately enter other auctions and start competing with other advertisers. Your position in auctions are unpredictable so the price is correlating due to your competitiveness. But often the correlation is not so significant. If not try this: Check the relevance of your ads Check if you adstet coplete forelearning (it takes a couple of additional days after increasing budget) Check your auction position (so far it's a post data you cannot influence it) Check your audience saturation and correlation between commulitive frequency and actions. Maybe you will have to change creos. Mainly advertisers who have a good offer, big spends and wider reach win. Also spend increase doesn't work on a narrow audience. Thank you.
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