What Is Andromeda, And How Does It Affect Facebook Ad Campaigns?

Andromeda is Meta’s AI-powered ad system that decides which ads people see, when they see them, and how often they’re shown. Since its launch, you may have noticed that Andromeda has changed the way Facebook ads work. And if you’re wondering ‘how’, here’s what you need to know.

In simple terms, Andromeda is designed to show users the ads they’re most likely to engage with. The system uses huge amounts of behavioural data and machine learning to predict which people are most likely to click, buy, sign up, or engage with an ad.

Today, for businesses spending big on Meta, the old way of running ads is far less effective. Where your work used to focus heavily on audience targeting, Andromeda now does the heavy lifting for you, matching individual ads to individual people. 

Andromeda targets, you need to feed it creative.

How Is Andromeda Different?

Things were simpler before Andromeda. You defined your audience, Meta found them, and your ads competed in auctions to reach them. The ads that performed best usually received the best delivery.

Targeting was the name of the game. While creative still mattered, audience segmentation was where marketers spent their time. 

Andromeda’s flipped things. Now, targeting is handled for you, and your ads are delivered to individual people, not groups. Instead of targeting, creative is now where your energy is best spent.

The Andromeda Process

Andromeda learns so much more about users than we can. How will they interact with the ad? Clicks, engagement, watch time, purchases, and conversions. Which users are more likely to engage? Andromeda even sees things we can’t: browsing behaviour, app usage, purchase activity, device usage, and even time-of-day behaviour trends.

From there, it constantly learns and adjusts delivery in real time. If certain users are more likely to engage or convert, the system automatically shifts more delivery to similar people.

The system continuously updates its predictions based on how users behave at that exact moment. Instead of treating audiences as static groups, it sees them as constantly changing pools of individual customers.

Remember, campaigns improve over time, as Andromeda learns more and refines targeting in the background. 

What Does Andromeda Optimise For?

Andromeda balances three major factors when deciding which ads to show users.

User value

First, it looks at how likely a specific person is to actually do something. That could be clicking an ad, making a purchase, signing up to a mailing list, or watching a video.

The system uses historical behaviour, current activity, and predicted intent to make these decisions. Since Meta has access to massive amounts of behavioural data across Facebook and Instagram, its predictions can become incredibly accurate over time.

Advertiser value

Andromeda also considers the value users and advertisers have to each other. This includes your bid, campaign objective, and the likelihood of conversion.

A common misconception is that the highest bid always wins. In reality, a lower bid with a stronger chance of conversion can beat a higher bid with weaker predicted engagement.

This is why strong ads often outperform larger budgets. If the system believes users are genuinely interested in the content, delivery becomes more efficient.

User experience

Meta doesn’t want people to log off. So ads that annoy users, get hidden, or create negative feedback will suffer.

On the other hand, ads that generate genuine engagement, comments, shares, or positive interactions are usually rewarded with better delivery.

How Should Advertisers Adapt To Andromeda?

Detailed targeting is no longer the main advantage it once was. Ad creative, messaging, and engagement have become far more important.

Focus on creating ads that people genuinely want to watch and interact with. Strong hooks, authentic creative, clear offers, and engaging content tend to perform best because they send positive signals back into the system.

Campaigns often require time for the algorithm to learn which users are most likely to convert. So remember to have patience. Constantly changing ads or making daily edits can interrupt the process and reduce performance.

The businesses that usually benefit most from Andromeda are the ones willing to test different creatives consistently while giving campaigns enough time to optimise properly.

How Can Businesses Get The Most From Andromeda?

Creative is now one of the biggest performance drivers on Facebook and Instagram. Video content, relatable messaging, strong visuals, and clear calls to action all help improve engagement and delivery.

Testing is also essential. Running multiple creatives, formats, and messaging angles gives the system more opportunities to find what resonates best with users.

Working with an experienced Facebook advertising agency can also help businesses adapt to these changes, improve campaign performance, and make better use of Meta’s increasingly AI-driven advertising platform.