全部术语
运营者术语表
否定商品定向（Negative product targeting，否定 ASIN）
把指定 ASIN 或品牌从投放里排除掉的功能——但它只管商品定向和自动广告，关键词广告组照样会打到竞品详情页。
否定 ASIN 只管商品定向和自动广告，关键词广告组照样打到竞品详情页，那边得用否定词。真正该拿它做的是自查：拉自动广告的 search term report，customer search term 列里 Amazon 把投放到的详情页直接打成 ASIN 而非搜索词，对一遍自家清单，先否掉兄弟变体和 2 件装、6 件装这种阶梯。两个坑：Amazon 声明的缓冲是否定词 72 小时、否定商品 96 小时（这是 Amazon 的说法，不是实测延迟），别三天内就下结论；manual campaign 的 campaign 级否定商品只对 vendor 开放，卖家只能逐个广告组加，广告组一多覆盖必然漏。
关键数字
费率与规则以官方英文原文为准，保留原文：
- Amazon scopes negative product targets to product-targeted and automatically-targeted ads only — keyword-targeted ad groups are controlled by negative keywords instead, so an ASIN exclusion list does nothing for them.
- Amazon states buffer periods of 72 hours for a negative keyword and 96 hours for a negative product — these are Amazon's stated buffers, not measured latency.
- Campaign-level negative product targeting on manual Sponsored Products campaigns is vendors-only, so sellers must push ASIN negatives into every manual product-targeting ad group individually, against a published limit of 10,000 negative products per ad group that Amazon says it raises as accounts approach it.
官方来源：Amazon Ads Support Center — Add negative keywords or negative products · Amazon Ads API — Sponsored Products negative product and brand targeting · Amazon Ads Support Center — Sponsored ads campaign limits
本词条另有英文完整版。