Most Amazon ad accounts are optimized to look good, not to make money. Revenue climbs, ACoS holds steady — and margin quietly erodes because nobody is measuring total advertising cost of sales (TACoS) against contribution margin per SKU.
The fix starts with unit economics. Before touching a bid, know your true margin per product after fees, returns, and storage. Products with thin margins need ranking strategies, not aggressive bidding; products with strong margins can afford to buy visibility. One number does not fit a catalog.
Structure follows strategy. We separate campaigns by intent: branded defense, competitor conquest, category ranking, and long-tail harvest — each with its own target ACoS derived from that product's margin and lifecycle stage. Search-term data flows weekly from broad discovery campaigns into exact-match performers, and negative keywords are maintained as rigorously as bids.
Reviewed weekly, this structure typically cuts 20–30% of wasted spend within two months while protecting rank. The revenue curve may look identical — the profit curve will not.
A full Amazon Growth Audit will show you exactly where your account leaks margin today, with a prioritized fix list.