Honest Growth
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You're showing 'first-time buyer' ads to existing customers

Your acquisition campaigns are reaching people who already bought. Small waste, real brand confusion.

Prospecting spend going to · last 30 days

  • New prospects (intended) · $11,620
  • Past purchasers (wasted) · $480

Costing you

$480.00

per month · $5,760.00 per year

Time to fix

10 min

Estimated, in Meta Ads Manager

How sure are we

Medium confidence · 85%

Below 90% comes with a 'what would change our mind' note

What's happening

Your prospecting campaigns are designed to find NEW customers — but they're also reaching people who bought from Mira in the last 90 days. You already have a '90-day purchasers' audience built; you just haven't added it to the exclusion list on those campaigns.

The dollar waste is modest (~$480/mo), but the bigger cost is brand experience. Someone who bought your serum last month is now seeing 'try Mira for the first time' ads. The fix is 30 seconds per ad set.

Where we could be wrong

When this finding doesn't apply

If you intentionally re-market to recent purchasers in prospecting (subscription brands sometimes do this for monthly re-acquisition), the exclusion would remove valid demand. Mira's product line suggests this is not the case, but worth confirming with your team.

We show this on every finding below 90% confidence. Right now, we're at 85%.

How to fix it

Step-by-step, in Meta Ads Manager. No external tools needed.

  1. In each prospecting ad set's targeting, open the Custom Audiences → Exclude field.
  2. Add the '90-day purchasers' audience.
  3. Save. No learning phase impact.
  4. Optionally repeat with a '180-day purchasers' audience if your repurchase cycle is longer than 3 months.

The exact numbers we fired on

Click to see the raw evidence. Useful if you want to verify our math before acting.

Audience '90d Purchasers' exists
Yes
Prospecting ad sets excluding it
0 of 2
Combined prospecting spend (30d)
$12,100
Conservative waste share (4%)
$480/mo

Want the full methodology behind this rule? Read the methodology →

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