I've audited over 50 e-commerce ad accounts in the last year. The same three mistakes keep showing up — and they're expensive.

1. Scaling spend before fixing your funnel

Most brands start scaling Meta ads at $500/day before their landing page converts above 3%. You're burning cash. Fix the page first — test headlines, social proof placement, and CTA copy. A 1% conversion rate improvement at $500/day in spend is worth $150K+/year.

2. Ignoring post-purchase email flows

Acquisition gets all the attention. Retention gets all the money. If you don't have a post-purchase flow that hits within 48 hours (thank you + cross-sell + review request), you're leaving 15-20% of potential repeat revenue on the table.

3. Running the same creative for 3+ weeks

Ad fatigue is real. Your CPMs spike, CTR tanks, and you blame "the algorithm." The fix is a creative testing system — 3-5 new angles per week, UGC + static mix, and a clear winner/loser framework so you're not guessing.

These aren't advanced tactics. They're fundamentals that most brands skip because they're chasing the next shiny growth hack.

If you want the full playbook on scaling e-commerce growth without the guesswork — that's exactly what we cover inside MarketCraft Pro every week.