The instinct when campaigns are underperforming is to increase budget and hope scale fixes it. It doesn't. Scale amplifies existing problems — a campaign wasting 30% of spend at $5,000/mo wastes $15,000/mo at $15,000/mo.
Run this audit first. It takes about an hour and most accounts find meaningful recoverable waste.
1. Check Search Term Reports (Google Ads)
In Google Ads, your ads show for searches that match your keywords — but "match" is interpreted broadly. Broad match keywords especially can trigger for completely irrelevant queries.
What to look for:
- Searches with zero conversions but significant spend (> $50 at your target CPA)
- Brand terms from competitors driving clicks but not converting
- Informational queries ("what is X") for commercial campaigns
Build your negative keyword list from these. This is the highest-leverage 30 minutes in Google Ads — consistently recovers 10–20% of wasted spend.
2. Audit Placement Reports (Meta and Google Display)
On Meta, your ads run across Facebook, Instagram, Messenger, and the Audience Network (third-party apps and sites). Audience Network placements often have high click volume and near-zero conversion rates.
Check Meta placement breakdown in Ads Manager → Breakdown → Placement. If Audience Network placements have strong spend but no conversions, exclude them.
On Google Display, check the placements report for the same pattern — sites with high impression share and zero conversions eating budget.
3. Check Frequency (Meta)
Frequency is average number of times a person has seen your ad. As frequency climbs, performance drops — you're paying to show the same ad to people who've already seen it and weren't interested.
Benchmarks by campaign type:
- Prospecting: frequency above 3–4 per week is a warning sign
- Retargeting: frequency above 7–10 per week and you're annoying buyers who haven't converted
If frequency is high, refresh creative or expand the audience rather than increasing budget.
4. Review Budget Allocation Across Campaign Types
Most accounts have the right campaigns but wrong budget splits. Retargeting campaigns (showing ads to people who already visited) typically convert at 3–5x the rate of prospecting campaigns — but are often underfunded relative to prospecting.
A rough allocation to start from:
- Prospecting: 60–70% of budget
- Retargeting: 20–30% of budget
- Existing customer upsell: 5–10% of budget
If your retargeting budget is 5% and prospecting is 90%, you're likely leaving conversion volume on the table.
5. Check Landing Page Conversion Rates by Traffic Source
Open your analytics and segment landing page conversion rates by traffic source. If your Google traffic converts at 3% and your Meta traffic converts at 0.8%, the problem might not be the ads — it might be that Meta's audience expects different messaging than what your landing page delivers.
Creating channel-specific landing pages (or at least channel-specific headline variants) often improves CPA more than any bid adjustment.
6. Review Ad Schedule Performance
Most campaigns run 24/7. Check Ads Manager or Google Ads for performance by hour and day. Common patterns:
- B2B: clicks from 2–4am at high CPC with zero conversions
- E-commerce: Friday evening through Sunday often outperforms weekday mornings
If you see strong hourly/daily variation (2x+ CPA difference), restrict delivery to high-performing windows.
7. Audit Automated Recommendations You've Accepted
Both Google and Meta have automated recommendations that sound helpful but often increase your spend without proportional lift. Check your change history for any AI-generated recommendations you accepted in the last 90 days.
Common culprits: Broad match expansions in Google, budget increases triggered by "learning phase" alerts, audience expansions in Meta that diluted targeting.
This isn't to say all recommendations are bad — some are genuinely useful. But they should be evaluated individually, not accepted in bulk.
What You'll Find
Most accounts running this audit find 20–40% of spend going to waste that's recoverable without reducing total budget. That's not a criticism of the account manager — it's a reflection of how much manual monitoring is required to catch these leaks across multiple campaigns and channels.
The math: on a $10,000/mo budget, recovering 25% waste is $2,500/mo. That's 30 more conversions at a $83 CPA, or the equivalent of a 30% budget increase — for free.