There was a viewable video ad on September 25th, a non-viewable display ad on September 26th, a viewable video ad on October 1st, and a non-viewable display ad on October 3rd. The customer purchases the product on Oct 6th. Which of the following receives the credit for conversion?

The correct answer is October 1st because Amazon DSP's default attribution model is last-touch viewable. This means that the last viewable impression before a conversion receives credit. While there were earlier viewable impressions, the viewable video ad on October 1st was the most recent viewable interaction before the purchase on October 6th. The non-viewable display ads on September 26th and October 3rd do not receive credit because they were not viewable. The purchase date of October 6th is when the conversion occurred, not the ad that drove it.