Here are a few proven tactics that have worked for me and many others managing ad accounts (especially on Meta, Google, and Amazon):
1. Improve your creative-to-offer match (not just make “prettier” ads)
Sometimes it’s not the creative itself — it’s the angle. I’ve seen massive improvements in conversions just by:
Focusing on pain points instead of features
Adding urgency or emotional triggers
Using raw UGC-style videos or testimonial-style creatives instead of polished branded ads
Result: Same spend, better conversion rate, CPA drops.
2. Retargeting warm audiences more efficiently
Instead of spending more on cold traffic, double down on:
Also, segment these audiences by intent and tailor creative specifically to where they are in the funnel.
3. Landing page tweaks (small changes, big results)
A 1–2% bump in your conversion rate can reduce CPA instantly. Tactics that worked:
Adding trust badges or testimonials above the fold
Simplifying the CTA (“Buy now” vs. “Explore more”)
Shorter forms for lead gen
4. Use CBO smartly (or switch to ad set budgets when scaling)
When scaling a winning campaign, keeping it on CBO (Campaign Budget Optimization) while feeding in new creatives or ad sets often allows you to scale without CPA rising.
Alternatively, I’ve seen better control (and stability) when switching to ad set budgets for a few isolated tests.
5. Layer in Lookalike + Interest stacking
A combo of:
1% Lookalikes based on highest LTV customers or past converters
Stacked interest groups (e.g., "Shopify + Stripe + Entrepreneur Magazine")
Often performs better than broad interest alone, and keeps CPA stable.
6. Exclude bad traffic sources (especially on PMax or Meta)
Regularly check:
Exclude or down-bid the underperformers to protect your CPA.
Bonus: Split-test everything — but one thing at a time