Beatrix is interested in using a third-party measurement provide to get additional metrics on placements like Streaming TV ads and mobile apps. Which solution would you recommend for their use case?

The correct answer is Server-to-server (S2S) integration because this solution allows for the seamless transfer of data between Amazon DSP and third-party measurement providers, enabling accurate tracking of metrics across placements like Streaming TV ads and mobile apps. S2S integrations are specifically designed to provide detailed reporting and analytics for campaigns running on various platforms outside of Amazon's ecosystem, ensuring that all relevant data, such as impressions, clicks, and conversions, are captured and shared with the third-party provider. This is especially useful for advertisers looking to measure the performance of ads served in environments like mobile apps and streaming services. The Conversion API and Amazon Ad Tag are useful for tracking specific conversions or events, but they do not offer the same comprehensive, cross-platform measurement capabilities as S2S integrations.