Report availability depends on the type of campaign that you’re running. For which of the sponsored ads campaigns can you generate an automatic targeting report?

Automatic targeting reports are exclusively available for Sponsored Products campaigns. These reports provide insights into the search terms and products that Amazon's automatic targeting identified as relevant to your ads, helping you discover new targeting opportunities and refine your strategy. Sponsored Brands and Sponsored Display campaigns do not offer automatic targeting as a feature, and therefore do not have corresponding automatic targeting reports. Sponsored Brands campaigns focus on keyword and product targeting for brand visibility, while Sponsored Display campaigns use audience and product targeting for reach and re-engagement.