Paid Advertising
Budgets, Bidding & Campaign Optimization
Build a systematic optimization workflow that improves campaign performance week over week.
Optimization Is a System, Not a Guess
Spending money on ads without a structured optimization process is exactly as wasteful as it sounds. The difference between advertisers who scale efficiently and those who burn budget is whether they have a repeatable system for identifying what's working, scaling it, and eliminating what isn't.
Setting Your First Budget
Start with a budget that generates enough data to optimize:
- Google Search: Minimum $20–40/day (generates 10–20 clicks/day at average CPCs)
- Meta Ads: Minimum $20–50/day per ad set to exit the learning phase (50 optimization events/week needed)
The 70/20/10 budget allocation rule:
- 70% on proven performers (campaigns with established ROAS or CPA)
- 20% on optimization experiments (testing new creatives, audiences, or bidding strategies)
- 10% on new channel tests (testing a platform you haven't proven yet)
Google Ads Bidding Deep-Dive
| Strategy | When to Use | Requirements |
|---|---|---|
| Manual CPC | First 2 weeks (learning) | None |
| Enhanced CPC | Early optimization | Some conversion data |
| Maximize Conversions | Budget-limited campaigns | Active conversion tracking |
| Target CPA | Lead generation scale | 30+ conversions/month |
| Target ROAS | E-commerce/revenue optimization | 50+ conversions/month |
Transition timeline: start manual → enhanced CPC after week 1 → Target CPA/ROAS after 30+ conversions.
Meta Ads Budgeting
Campaign Budget Optimization (CBO): Set budget at the campaign level, let Meta distribute to best-performing ad sets. Better for campaigns with 3+ ad sets.
Ad Set Budget: Fixed budget per ad set. Better when you want to protect specific audiences from being starved.
Learning Phase: Each new ad set enters a "learning phase" that requires approximately 50 optimization events within 7 days. During learning, performance is unstable — don't judge or kill ads in this phase.
30-Day Optimization Workflow
Week 1 — Launch
- Deploy 3–5 creative variations per ad set
- Broad targeting, let algorithms explore
- No optimization — gather data
Week 2 — Identify Winners
- Pause creatives below average CTR (for awareness) or above target CPA (for conversion)
- Identify winning audiences (lowest CPAs)
- Note search terms in Google Ads — add negatives
Week 3 — Scale Winners
- Increase budget on winning ad sets by 20–30% (never more — larger jumps reset the learning phase)
- Introduce 2–3 new creative variations to prevent ad fatigue
- Expand winning lookalike audiences
Week 4+ — Defend and Expand
- Monitor for ad fatigue (CTR declining week over week = audience is tired of seeing the ad)
- Launch new creative before old creative burns out
- Test new audience segments when primary audiences are saturated
Diagnosing Problems
| Symptom | Likely Cause | Fix |
|---|---|---|
| High impressions, low CTR | Creative isn't compelling | Test new hooks and images |
| High CTR, low conversion rate | Landing page isn't converting | A/B test landing page |
| High CPA | Targeting or funnel misalignment | Narrow audience, improve landing page |
| Declining CTR over time | Ad fatigue | Refresh creative |
Retargeting Budget Allocation
Allocate 20–30% of total ad spend to retargeting warm audiences. Retargeting typically converts at 3–5x the rate of cold traffic:
- Website visitors (last 30 days)
- Pricing page visitors (last 14 days) — highest intent
- Cart abandoners (last 7 days)
- Video viewers (watched 50%+)
Key Takeaways
- The 70/20/10 rule (proven/experiments/new channels) prevents budget waste while enabling strategic testing
- Smart Bidding (Target CPA/ROAS) requires 30–50+ conversions/month to work — start manual and earn your way to smart bidding
- Scale budget gradually — no more than 20–30% per 3 days to avoid resetting Meta's learning phase
- Diagnose by symptom: low CTR = creative problem, low CVR = landing page problem, high CPA = targeting problem
- Allocate 20–30% of budget to retargeting — these audiences convert at 3–5x cold traffic rates
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Try It Yourself: Create a 30-day optimization plan for a $3,000/month budget split between Google Search ($1,800) and Meta ($1,200). Specify: daily budgets, bidding strategies, weekly actions for each platform, and the key KPIs you'll check daily vs weekly.