What percentage of your Meta spend is actually reaching net-new customers? If you can't answer that in under 60 seconds from your dashboard, Meta just shipped the control you need.
βThursday's newsletter covered the ASC existing customer cap - the percentage-of-output constraint that tells the algorithm how much existing-customer spend it's allowed to produce. That's still the best tool for Advantage+ Shopping campaigns.
Meta is quietly rolling out a better version at the ad set level for manual Sales campaigns. It's called Customer Lifecycle Strategy, and it works differently - it tells the algorithm who it's allowed to reach before any budget is spent.
Run these three checks this week.
Check 1: Do You Have Access?
Open a manual Sales campaign and go to the ad set level. Look for a section labeled "Customer lifecycle." You'll see two options.
"Reach new and existing customers" blends prospecting and retargeting, which generally produces a lower cost per result because easy wins from past buyers are included in the mix.
"Acquire new customers only" excludes your defined existing customer list and focuses the entire budget on net-new acquisition.
Inside the acquisition option, there's an additional toggle to exclude engaged-but-unconverted audiences if you want the budget allocated exclusively to fully cold traffic.
If you see this section, you have access. If you don't, the feature hasn't rolled out to your account yet.
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If you want to understand what we could for your brand let's chatπ book a call with me.β
Check 2: Is Your Existing Customer Audience Clean?
Customer Lifecycle Strategy only works if the Existing Customers audience segment defined at the Ad Account level is actually accurate.
That means a combination of Meta Pixel purchase events, Conversions API data flowing in cleanly (which ties back to the March Week 4 EMQ piece on event match quality), and ideally an auto-syncing customer list upload from your CRM or Shopify.
If the existing customers' definition is incomplete, the exclusion is incomplete. The feature will underdeliver on what it promises, and you conclude "this doesn't work" when the issue is in your Ad Account audience settings.
- Go to Ad Account Settings and pull up the Existing Customers audience segment.
- Verify it's fed by multiple sources and is refreshing.
- If it's a single Pixel-only definition from 2022, fix that before activating "Acquire new customers only."
Check 3: What's Your Current New vs. Existing Split?
Pull your last 30 days of conversions from your active campaigns. Segment by new customers vs. existing customers.
If you're running campaigns without existing customer controls and more than 30-40% of your conversions are coming from existing customers, you have a targeting drift problem. Your acquisition spend is buying repeat purchases instead of net-new customers.
This diagnostic tells you whether you need tighter controls.
- If your new customer percentage is already high, you may not need this feature.
- If existing customers are taking a meaningful portion of your acquisition budget, you do.
The Decision Framework
Thursday's ASC existing customer cap is a percentage-of-output constraint.
The cap tells the algorithm how much existing-customer spend it's allowed to produce. You set it to 10-25% existing customers allowed, and the algorithm figures out how to stay within that cap after it's already served impressions and generated conversions.
Customer Lifecycle Strategy tells the algorithm who it's allowed to reach in the first place.
It's a delivery-level instruction - you tell Meta not to serve existing customers at all, controlling who gets reached before any budget is spent.
Use the ASC cap for: Advantage+ Shopping campaigns (it's the only control available)
Use Customer Lifecycle Strategy for: Manual Sales campaigns where you have access and want delivery-level control
What to Expect When You Activate
When you select "Acquire new customers only," Meta warns that CPA will likely be higher because you're removing the algorithm's easy path - serving existing customers who would've converted anyway.
However, every conversion is genuinely net-new, which is the number that actually grows the business.
Brief your team and any internal stakeholders before you flip the switch.
A CPA increase that gets misread as a performance decline will trigger bad spend decisions before the numbers stabilize.
Rollout Status
The feature rolled out in early 2026 for manual Sales campaigns and is expanding gradually.
Mid-April 2026, a Meta rep confirmed it's still described internally as closed beta. Multiple media buyers have reported access since late March.
Some accounts have it. Others don't. Run Check 1 to find out which camp you're in.
Final Thoughts
Meta is shipping this quietly, without a formal announcement.
Operators who pay attention to ad set configuration this week will find the feature in their accounts before the market catches up.
Thursday's ASC cap remains the best control for Advantage+ campaigns.
This lifecycle instruction is a better control for manual Sales campaigns. Using the right control for your campaign type means cleaner NCAC reporting and fewer budget allocation mistakes.
If you want a growth partner who is invested in helping you build a profitable business, someone who is going to push you to make changes that focus on profitable growth. Book a call - letβs chat.β
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