Which third-party measurement solutions can identify purchase lifts not on Amazon.com?

The correct answer is Offline Sales Lift because this third-party measurement solution is specifically designed to identify and quantify the impact of advertising efforts on purchase behavior that occurs outside of Amazon.com, such as in physical retail locations. By measuring how advertising influences sales in offline environments, advertisers can gain insights into the overall effectiveness of their campaigns beyond the online platform. In contrast, Mobile Measurement Partners (MMPs) primarily focus on mobile app performance and attribution, while Location Lift measures the impact of advertising on foot traffic and sales at specific locations rather than providing a comprehensive view of offline purchase lifts, making Offline Sales Lift the most suitable option for identifying non-Amazon purchases influenced by advertising.