Here's the audit and rebuild.

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Meta quietly changed something in your ad account around May 18.

And if you haven't checked since, your retargeting is already running differently than you set it up.

They extended the maximum retention window for purchase-event custom audiences from 180 days to 730 days.

And in accounts where the change has already landed, your old 180-day pool appears to have automatically expanded to 730 days without you touching anything.

Think about what that means.

A customer who bought from you 20 months ago and never came back is now sitting in the same retargeting list as someone who bought last week.

You're showing ads to both of them.

Your hottest buyers and people who've long moved on, with the same budget and the same creative.

30-minute fix. Here's exactly what to do.

Across the 7-8 figure brands I work with, chargebacks quietly eat 0.9% to 1.4% of revenue every year.

On a $10M brand, that's $90K to $140K walking out the door.

The biggest driver is friendly fraud.

> The customer got the product> Disputes anyway> Leaving the brand to eat the loss

Then, add on $15 to $100 in fees per chargeback, the ops hours required to fight properly, and the risk of your chargeback ratio creeping into Visa or Mastercard monitoring territory.

Most operators don't fix it because doing it manually requires real ops investment.

The tool I've been pointing to is Chargeflow with:​> Two-click store integration> Full dispute lifecycle handled for you> No internal ops

And you only pay when they recover the money. If they lose, you pay $0.

Merchants like The Beard Club recovered 42% more revenue and saved 40+ hours a month.

30 days free with code CF30. If you're not running something like Chargeflow, you're choosing to eat the loss every month.​

Connect Your Store 👈

The shorter windows (30, 60, 90 days) are unaffected. The change only affects the ceiling, not the floor.

You can still set any number between 1 and 730.

• Open Audiences in Ads Manager.

• Filter to purchase-event custom audiences.

• Check the retention setting on each one.

• Any showing 730 days that you didn't set yourself were converted from your previous 180-day window.

Log which ones. That's your starting point.

The right window depends on your category's actual repeat-purchase cycle, not on whatever the platform defaulted to.

How I'd read it across the accounts I work with:

Keep 730 for:

• Furniture and luxury home goods

• High-ticket lighting and design

• Seasonal products (ski gear, holiday items, yearly rebuy cycles)

• B2B with long renewal cycles

Shorten this week for:

• Supplements and beauty consumables: 90 days max

• Past 90, the customer has churned or switched

• Fast-fashion apparel: 180 days

• Subscription brands: match the audience window to your churn curve

• Discount-sensitive brands where 6-plus-month buyers are mostly low-LTV one-timers

Find your category, set the window manually, document the rationale.

Instead of one purchase-event audience sitting at the maximum window, segment by recency tiers.

Each tier gets specific creative, offer, and bid logic.

The rebuild I'd run this week:

> Tier 1: Bought in the last 90 days (your hottest buyers)

• Creative: complementary product launches, remind them to restock, no discount

• Offer: none needed at this tier

• Bid: target 1.5 to 2x break-even ROAS. Intent is high, you can spend more here.

• Frequency ceiling: up to 4 times per week

> Tier 2: Bought 91 to 180 days ago (lifecycle nurture)

• Creative: new product launches, brand storytelling, soft replenishment nudge

• Offer: free shipping if they need a push. No percentage discount yet.

• Bid: 1.2 to 1.5x to break-even ROAS

• Frequency ceiling: up to 3.5 times per week

> Tier 3: Bought 6 months to 1 year ago (win them back)

• Creative: "Here's what's new since you last ordered." Give them a reason to come back.

• Offer: 10 to 15% off, gift with purchase, or threshold bundle

• Bid: at break-even ROAS

• Frequency ceiling: up to 3 times per week

> Tier 4: Bought 1 to 2 years ago (treat like a stranger)

These people barely remember you. Treat them like a new customer.

• Creative: full acquisition creative, UGC-heavy, hook-driven

• Offer: your strongest deal: 20%+ off, BOGO, whatever you'd offer a first-time buyer

• Bid: at or near prospecting CPA targets

• Frequency ceiling: up to 2.5 times per week

These tier boundaries are the rebuild I'd run based on how these categories actually behave in the accounts I work with.

This is the part most coverage of the 730-day change has skipped over.

If you're running Advantage+ Shopping Campaigns and using a purchase-event audience as your existing-customer signal, there's a second issue.

Most people set the existing customer cap at 30%.

That 30% used to be calculated against your 180-day buyer list.

Now it's being calculated against your 730-day pool, which may include people who haven't bought in over a year.

That's a cold lead you're paying warm prices for.

Two things to fix:

Fix 1. Rebuild your existing-customer signal to a tighter recency window.

For most categories, 90 or 180 days is closer to what "existing customer" actually means in your account.

Fix 2. Recalculate the cap percentage against your real existing-customer count, not the expanded pool.

• Open the audience in the Audiences Manager.

• Edit the retention window manually back to your preferred number (30, 60, 90, or 180 days).

• Save.

It won't revert automatically. You have to do it manually.

This is the simplest fix available and it's buried enough that it's easy to miss.

1. Open Audience Manager, filter purchase-event audiences, log anything showing 730 days you didn't set.

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2. Match your category to the prescription above and set the window manually.

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3. Build the 4-tier recency segmentation with the creative, offer, and bid logic per tier.

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4. Audit ASC campaigns using the existing-customer cap, rebuild the signal to a tighter window, recalculate the cap.

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5. Set frequency ceilings per tier: 4.0 / 3.5 / 3.0 / 2.5 per week.

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6. Pull trailing 30-day retargeting performance and re-baseline. Numbers from before May 18 are not like-for-like.

Meta shipped this mid-rollout with minimal fanfare.

Operators who haven't opened Audience Manager in the last two weeks are running retargeting against a fundamentally different pool than the one they designed.

The drop in quality won't show up in the dashboard right away.

By the time it does, you've already paid for it.

30-minute fix.

The cost of skipping it compounds every day the audience stays misaligned with what your campaign was designed to do.

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 - let’s chat.​

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