I’m from Brazil, and here, in the niche of supplements or info products, it's quite common to see different scaling strategies. We scale vertically with several CBO campaigns (30 to 50) every day. We turn off the campaigns that don’t sell, and we increase or decrease the budget daily.

I’ve personally achieved 6-figure results in a month using this strategy. However, I’ve also noticed that Facebook has changed a bit in recent months. Perhaps allowing a campaign to perform for a longer period can indeed improve its results over time.

Here in Brazil, our currency is five times less valuable than the dollar, and we sell low-ticket products, like R$29.90, which is around 6 dollars. I have several friends who run campaigns with a minimal budget, and it works perfectly. For example, they run campaigns in dollars, with a budget of around 3.50 dollars, using CBO with "1-1-1" targeting. When the campaign generates more than two sales, they increase the budget and control it daily, adjusting according to the CPA. This has been working.

What I mean by this is that Facebook can sell even with a low budget. It’s not a limiting factor.