A PI Firm Spending $38k/Month on Meta Discovered 34% of Reported Conversions Were Wrong.
The agency said performance was strong. Intake said quality was declining. The verification audit resolved the disagreement in 11 days — and changed how the firm allocates every dollar of ad spend.
The situation
The firm had been running Meta ads for 14 months. Monthly spend had grown from $15k to $38k based on consistently strong CPL reporting from their agency. On paper, everything looked healthy.
But the managing partner noticed a disconnect. Despite "record" lead volume, intake was reporting fewer qualified consultations. Signed cases had plateaued even as spend increased 2.5x. The agency attributed this to "market conditions."
What the audit uncovered
Over 11 days, we traced every conversion event from Meta through the firm's call tracking, intake system, CRM, and case management software. AI-assisted anomaly detection flagged patterns that manual review confirmed.
The Meta Pixel and Conversions API were both firing on the same form submissions without proper deduplication. 18% of reported conversions were counted twice.
UTM parameters were being stripped on mobile redirects through the firm's call tracking provider. Google Ads and organic traffic were being credited to Meta campaigns. An additional 16% of "Meta conversions" originated from other channels entirely.
Of the 25 verified Meta conversions per month, only 9 progressed to a signed retainer. The CRM had no reliable linkage between ad click and case outcome. The firm was optimizing Meta's algorithm on events that included junk leads, duplicate entries, and traffic from other channels.
Before vs. after verification
- 142 reported leads/month (inflated by 34%)
- $268 reported CPL (artificially low)
- Agency recommended increasing to $50k/month
- No connection between ad spend and retained cases
- Partners debating whether marketing "works"
- 94 verified unique leads/month (accurate count)
- $404 true CPL (real cost visibility)
- Scaling paused until measurement was corrected
- Every campaign now traced to signed retainers
- Partners make decisions from one verified data set
What changed after the audit
Is Your Firm Scaling on Distorted Data?
If you're spending $10,000+ per month on Meta and can't trace ad spend to retained cases, the same distortions are likely present.
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