Overview

Amazon Sponsored Products can generate high volumes of traffic, yet irrelevant clicks quickly drain ad budgets and inflate ACoS. By adding negative keywords, sellers instruct Amazon to ignore specific search phrases, preserving spend for shoppers who are more likely to convert. Mastering this feature helps advertisers focus on high‑intent traffic and improve overall campaign efficiency.

Key Points

• Cost containment — Excluding non‑purchasing queries can shave up to 30 % off ACoS in tightly contested categories.
• Higher relevance — When ads appear only for intent‑rich terms, click‑through rates often climb 15‑20 % compared with unrestricted campaigns.
• Data‑driven pruning — Search‑term reports routinely surface wasteful clicks; each filtered term typically saves about $0.12 per click.
• Campaign hygiene — Regularly refreshing negative lists stops “keyword creep,” where overly broad matches begin attracting unrelated traffic.
• Bulk automation — Uploading a CSV file lets sellers insert hundreds of negatives across multiple ad groups in a matter of minutes.
• Brand safeguarding — Blocking competitor names or “free”‑related queries protects premium listings from price‑sensitive clicks that erode margin.

How Negative Keywords Work

1. Spot wasteful clicks — Pull the latest Sponsored Products search‑term report; if a phrase such as “free Amazon gift card” generated 50 clicks and zero sales, flag it for exclusion.
2. Select the proper match type — Apply a negative exact to block only the exact phrase (“free Amazon gift card”), or a negative phrase to block any query containing those words, like “free Amazon gift card code.”
3. Assign to the correct campaign or ad group — Insert the negative keyword into the specific ad group where the unwanted clicks occurred, ensuring other product lines that might benefit from broader exposure remain untouched.
4. Upload in bulk — Create a CSV with columns for campaign name, ad group, match type, and keyword; then import the file through the Amazon Advertising console to apply dozens or hundreds of negatives instantly.