Please add the Other-SKU attribution metrics from the Amazon Ads API v3 spAdvertisedProduct report to the Sponsored Products advertised product report (sponsored_products_advertised_product):
Why: these show how much of an ad’s attributed sales came from products other than the advertised ASIN (halo sales). That lets us measure cross-sell value per ad and correct per-ASIN organic sales, which are currently distorted when a click on one variant leads to a purchase of another.