Andromeda is a new ad selection system inside Meta: the algorithm analyzes a large pool of ads and decides which creative is more likely to fit a specific user. In
Meta’s engineering blog, it is described as a system for personalized ad retrieval within Advantage+ automation. For media buyers, this means that Facebook increasingly wants to decide on its own whom to show ads to, where to show them, and which creative to choose — while expecting fewer manual restrictions and more options from advertisers.
At the same time, Andromeda and Advantage+ are not the same thing. Andromeda works inside Meta’s advertising system, and you cannot turn it on or off separately. Advantage+ is already a set of automation tools that advertisers can control: for example, by giving Facebook more freedom when working with audiences or placements.
Previously, the usual launch structure often revolved around one campaign, one creative, and many ad sets. Teams manually split audiences by gender, age, interests, and placements, tested different segments, and tried to find a working combination through settings.
Ivan, Lead of Facebook at Profit Rental:
“Around August 2025, this setup simply stopped working the way it used to for many teams. It took time to get used to it and test new approaches. As a result, the logic is almost the opposite now: one campaign, one broad ad set, and many creatives inside. We go through audiences manually much less and leave more decisions to Facebook.”Over the year, the focus has clearly shifted:
fewer ad sets → broader audience → more creatives → more freedom for the algorithm. Instead of breaking users down into dozens of segments in advance, the team gives Meta a broad audience and a set of different creatives, and then the algorithm finds working combinations on its own.
And this is what changed the usual work of a media buyer the most: there is now much less point in endlessly going through targeting, while there is much more value in constantly working with creatives and understanding what to do with the campaign after launch.
And that is probably the main change of the past year.