The document discusses new enhancements to Amazon's Product Listing Ads (PLA) seller-level attribution metrics. It will now capture the incremental sales generated for other products in a seller's portfolio due to a PLA campaign, not just the advertised products. Key metrics like total orders, revenue, conversion rate, and ROI will now reflect this broader campaign impact. Reports on the homepage, campaign, ad group, and listing levels will be updated to provide visibility into both sales of the advertised products and other products influenced by the campaign. This provides sellers a more complete picture of the true business impact of their PLA campaigns.