查看更改历史记录
您可以查看对商品推广活动和品牌推广活动所做更改的详细汇总。对于商品推广，您可以查看对广告组所做更改的详细汇总。
您可以在同一视图中查看单个广告活动和广告组级别以及所有商品推广和品牌推广活动的更改历史记录：
单个广告活动级别： 前往广告活动，选择您要查看历史记录的广告活动，然后点击历史记录。
广告组级别（仅适用于商品推广）： 前往广告活动，选择您要查看历史记录的广告活动和广告组，然后点击历史记录。
所有品牌推广和商品推广活动： 前往广告活动，然后点击历史记录。
更改历史记录将显示对广告活动设置、定位和否定定位所做更新的详细汇总。此外，对于商品推广，历史记录将显示对广告组设置和广告所做的更改。
亚马逊官网原文详情：
View change history
You can view a detailed summary of changes made to Sponsored Products and Sponsored Brands campaigns. For Sponsored Products, you can view a detailed summary of changes made to ad groups.
You can view change history at the individual campaign and ad group levels, and across all Sponsored Products and Sponsored Brands campaigns in the same view:
Individual campaign level: Go to Campaigns, select the campaign you’d like to view the history for, and click History.
Ad group level (available for Sponsored Products only): Go to Campaigns, select the campaign and ad group you’d like to view the history for, and click History.
All Sponsored Brands and Sponsored Products campaigns: Go to Campaigns and click History.
Change history will show a detailed summary of updates to campaign settings, targeting, and negative targeting. Additionally, for Sponsored Products the history will show changes to ad group settings and ads.
文章来源：亚马逊官方网站
