Amazon uses different attribution windows depending on ad type:
Sponsored Products: 7-day attribution
Sponsored Brands: 14-day attribution
Sponsored Display: 14-day attribution
This means your Sponsored Products sales in Amazon's campaign manager only count purchases within 7 days of a click, while Sponsored Brands and Sponsored Display count purchases within 14 days. This makes it difficult to compare performance across ad types.
For consistency and apples-to-apples comparison across ad types, AdLabs uses 14-day attribution for everything.
If your AdLabs numbers look slightly higher than what you see in Seller Central for Sponsored Products, this is likely why.
You're not missing anything. AdLabs is just counting a wider window of attributed sales.
