What Is the Meta Andromeda Update and Why Is It Destroying Ad Performance?

Something changed in 2026 for brands running ads on Facebook and Instagram.

Conversions dropped. Cost per acquisition shot up. Budgets that used to fill up easily are now going unspent. Business owners are scratching their heads. Marketers are losing clients. And everyone is blaming everyone else.

But the real culprit is the Meta Andromeda update.

Most people have heard the phrase in marketing communities. Very few actually understand why it has broken the funnel strategies of millions of businesses overnight.

This post is going to change that.

Why Ads on Feed Platforms Were Always a Challenge

Before we get into Andromeda specifically, let’s be honest about something. Getting customers from cold traffic from Facebook, Instagram, or TikTok has never been easy.

Think about why you open Instagram. You’re there to relax. To see what people you follow are doing. To watch something that makes you laugh. You are not there to be sold to.

So the moment an ad interrupts that experience, your instinct is to scroll past it. That’s just human nature.

But brands have been making it work for years. Smart creative, strong copy, and good targeting could get results even with a cold audience. It was hard but possible.

In 2026, it has become significantly harder. Some have even called it near impossible for brands that haven’t adapted.

The reason is Andromeda.

What the Andromeda Update Actually Did

Meta was facing two converging problems.

First, billions of people now use the platforms Facebook, Instagram, WhatsApp and beyond. More people mean more content being produced, and more accounts competing for attention. So it is a lot more complex to decide what to show to whom.

Second, AI made it easy for anyone to produce content at scale. The result was an explosion of ads and content that looked passable on the surface. But they follow none of the principles of good copywriting, persuasion, or creativity. Low-quality content is flooding the feed at a massive volume.

Meta’s problem is how to maintain a good user experience when anyone with an AI tool can dump thousands of near-identical ads.

Their answer was the Andromeda update, and specifically a new concept called Entity ID.

Understanding Entity ID — The Core of the Update

Before Andromeda, Meta used something called a Creative ID. Every ad you uploaded got a unique number. Meta would treat each as distinct and let user behaviour decide which performed best. 

But Meta’s system couldn’t tell whether two ads were actually different in any meaningful way. You could upload twenty near-identical ads with slightly different headlines. Meta would dutifully test all twenty, even though from a user’s perspective, they were basically the same.

The Andromeda update introduced Entity ID to fix this.

Entity ID uses an AI algorithm that scans your ad. It analyzes how similar it is to other ads that have come before. It then groups visually and conceptually similar ads together and assigns them the same entity ID.

Here is the critical part: if two ads have the same entity ID, Meta will not bother testing both of them.

It goes further than that. Meta now also judges the quality of your ad before it even reaches a user. If the algorithm decides your creative doesn’t meet a certain standard for user experience, it won’t be shown. That means they look like AI slop, or it’s too similar to things users have already seen, or it makes people feel annoyed. 

Your ad gets rejected before it ever reaches your audience. Not rejected in the traditional policy-violation sense. Just quietly deprioritized into oblivion.

That is why budgets aren’t being spent. That is why conversions have collapsed. Meta is filtering out huge volumes of ads before users ever see them.

Why So Many Brands Got Caught Off Guard

The Andromeda update is public information. You can Google “Meta entity ID” and find documentation. But almost nobody talks about what it actually means in practice.

Most brands and marketers heard about it and responded in one of three ways:

Some said nothing had changed and kept running the same playbook. Their results continued to tank.

Some panicked and started trying every new tactic they could find with no underlying system.

Some understood the entity ID concept at a surface level but drew the wrong conclusion that they just needed to make more ads. So they started churning out larger volumes of content. But most of it is still failing the algorithm’s quality check.

None of these responses worked. Because the problem is not volume. The problem is creative quality and originality.

What This Means for Your Ads Right Now

The Andromeda update is essentially Meta saying to advertisers: you have become lazy. Now work smarter.

The good news is that Meta still wants you to advertise on their platform. That is how they make money. They are not trying to shut you out. They are trying to raise the standard of what appears in their users’ feeds.

If your creative passes the entity ID filter and provides a genuinely good user experience, Meta actually rewards you. You get better distribution. You scale more easily. The algorithm works with you rather than against you.

The question is, what does “good creative” actually look like in a post-Andromeda world?

There are a few principles that consistently work:

Each ad must be genuinely different. Not just a different headline on the same image. Conceptually different. A different angle, a different format, a different point being made. Different enough that Meta’s AI would assign it a new entity ID.

Simplicity beats complexity. The instinct after an algorithm update is often to over-engineer with more elements, branding, and information. Post-Andromeda, the opposite is true. The ads that are working are clean, focused, and easy to process on a phone screen in two seconds.

The Rule of One matters more than ever. One audience. One idea. One offer. One action. Ads that try to do too much get filtered out, they don’t convert.

User experience is now part of your creative brief. The question is no longer just “will this persuade someone to buy?” It is “will this person feel good about having seen this ad?” If the answer is no, the algorithm will likely kill it before anyone sees it anyway.

Copywriting is the foundation. If you cannot write a persuasive, clear, human line of copy, AI-generated imagery will not save your ad. The words come first. The visual comes from the words.

The Opportunity Nobody Is Talking About

Here is the thing about moments like this: they create an opportunity.

Most businesses are currently lost. They know results have dropped. They don’t know exactly what to do. They are willing to spend money to fix it.

The brands and marketers who understand what Andromeda actually did are in an extraordinary position right now. The window, by most estimates, is around one to two years before this knowledge becomes mainstream and everyone catches up.

Right now, it is still uncommon knowledge. And uncommon knowledge is where the opportunity lives.

Where to Start

If you are a business owner running your own ads, the first step is to audit your current creative with entity ID in mind. Are your ads genuinely different from each other? Or are they just slight variations of the same thing? 

If you are a marketer or freelancer, understanding creative strategy is the most valuable skill you can develop right now. Brands are actively looking for people who understand this. Many of them do not know what to ask for, but they know their current approach is not working.

The Andromeda update did not kill advertising on Meta. It killed lazy advertising on Meta. Everything else made it more valuable.

 …

If this was useful, follow me for more on copywriting, creative strategy, and what actually works in 2026. I am documenting my own journey learning this — the wins, the mistakes, and everything in between.