There was a viewable display ad on July 15th, a non-viewable video ad on July 22nd, and a viewable video ad on July 29th. The customer had clicked on the first display ad on July 15th and purchased the product on August 5th. Which of the following receives the credit for conversion?

The July 29th viewable video ad receives credit for the conversion. Amazon DSP's default attribution model is a 14-day, last-touch attribution for viewable impressions and clicks. This means the last viewable impression or click within 14 days of the conversion gets the credit. The purchase occurred on August 5th. The July 29th viewable video ad is the last viewable ad interaction within the 14-day attribution window (July 22nd to August 5th). The July 15th display ad was clicked, but it falls outside the 14-day window relative to the August 5th purchase. The July 22nd non-viewable video ad is not credited because it was not viewable. The August 5th purchase is the conversion event itself, not an ad that receives credit.