ACOS (Advertising Cost of Sales)

Ad spend divided by ad-attributed sales for the period: what you spend to earn a dollar of ad sales. Lower is better. Ad sales count within 14 days of a click on Vendor Central accounts and within 7 days for Sponsored Products on Seller Central accounts, as Amazon attributes them.

Where is it in InsightLeap?

In the Advertising section of weekly and monthly reports for accounts with a connected Amazon Ads profile, and for each search term on Advertising > Search Terms.

Where is it in Amazon Ads?

Campaign Manager shows ACOS for each campaign.