The conventional wisdom in Meta Ads audience targeting used to be: the more specific your targeting, the better your results. Find your exact niche — women, 28–35, interested in yoga, own a dog, recently engaged — and show them your ad. That approach made sense when Meta’s algorithm was less sophisticated. In 2026, it’s often the wrong move.
This guide explains how targeting has evolved, when broad audiences outperform narrow ones, and how to think about audience strategy for different campaign objectives.
How Meta’s Targeting Has Shifted in 2026
Meta has steadily moved away from granular interest-based targeting toward AI-driven audience discovery. The clearest signal of this shift is Advantage+ Audiences — Meta’s default targeting option that essentially asks the algorithm to find your best customers from the full addressable population, guided by your creative and optional “audience suggestions.”
In numerous A/B tests run by advertisers across industries, Advantage+ Audiences has matched or outperformed tightly defined interest audiences — often with lower CPAs and higher ROAS. The reason is that Meta’s algorithm, trained on billions of behavioural signals, can identify purchasing intent patterns that no manually configured audience can fully capture.
What this means practically: for prospecting campaigns, broad targeting or Advantage+ Audiences is increasingly the right starting point, with creative doing more of the targeting work than audience parameters.
When Broad Targeting Works Best
Broad Meta Ads targeting — meaning minimal interest layering, wide age ranges, and geography as the primary constraint — tends to outperform narrow targeting in these situations:
- High spend campaigns: When you’re spending £5,000+/month on Meta, broad audiences give the algorithm enough room to find patterns. Narrow targeting at high spend causes audience saturation quickly.
- Strong creative and proven offer: Broad targeting works when the creative itself filters the audience. A video that opens with “If you’re a founder spending £10k+ per month on paid ads…” will self-select the right viewer, even with broad targeting.
- Established pixel with conversion data: If your Meta Pixel has recorded 500+ purchase events, the algorithm has a clear signal of who buys. Broad targeting with a healthy pixel almost always outperforms interest stacking.
- New markets or products: When you don’t yet know who your buyer is, broad targeting discovers it faster than guessing at interest combinations.
When Narrow Targeting Still Has a Place
Despite the trend toward broad, there are genuine use cases for more specific Meta Ads audience targeting:
- Small budgets: With £500–£2,000/month in spend, broad targeting doesn’t give the algorithm enough data to learn efficiently. Narrower audiences are a practical necessity when you’re limiting the total auctions you enter.
- Retargeting: Retargeting audiences are narrow by definition — past visitors, cart abandoners, video viewers. These should always be tightly defined.
- Niche B2B campaigns: If you’re targeting a very specific job title, industry, or company size, interest targeting (or job title targeting where available) can add precision that broad targeting misses.
- Exclusions: Narrow targeting is more useful for exclusions than for inclusions. Excluding recent purchasers, current subscribers, or specific competitor audiences improves efficiency regardless of how broad your inclusion targeting is.
Related reading: Why Your Meta Ads Frequency Is Too High (And How to Fix It)
Advantage+ Audiences: How to Use It
Advantage+ Audiences is now the default when creating new Meta ad sets. Rather than turning it off (a common instinct for advertisers used to manual control), the most effective approach is to use the “Audience suggestions” feature to provide soft guidance:
- Add 2–3 relevant interest categories as suggestions (not strict constraints)
- Set your geographic parameters clearly
- Let Meta apply its full targeting flexibility beyond those suggestions
Treat Advantage+ Audiences as a starting configuration, not a set-it-and-forget-it solution. Monitor your audience breakdown report to see who Meta is actually reaching and adjust your creative if the actual audience doesn’t match your intended buyer.
The Role of Creative in Audience Targeting
In a world where broad targeting is the default, creative is the new targeting. The specificity that you used to build into audience parameters now lives in your ad itself. An ad that opens with a very specific problem statement, customer profile, or use case will self-select the relevant audience even within a broadly defined targeting setup.
This means your creative testing becomes more important than your audience testing. Test different hooks, different customer personas, different use cases — and let the algorithm deliver each to the people most likely to respond.
Audience Size: A Practical Framework
As a rough guide for prospecting campaigns:
- Under £3k/month spend: 500k–2M audience size
- £3k–£10k/month spend: 2M–10M audience size
- £10k+/month spend: 10M+ or fully broad — let Advantage+ do the work
Final Thoughts
The question “broad or narrow?” in Meta Ads audience targeting doesn’t have a single right answer — but the default has shifted. Start broad, let the algorithm learn, and use your creative to do the targeting work. Reserve narrow targeting for retargeting, small budgets, and exclusions. And keep testing — because what works today will continue to evolve as Meta’s AI capabilities improve.
Marquee manages Meta Ads campaigns for brands across multiple verticals. If your targeting strategy feels outdated, get in touch for an audience audit.
Want expert help with your campaigns? See our Meta Ads management service.