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

The July 29th viewable video ad receives credit for the conversion because Amazon DSP's default attribution model is "last touch." This means the last ad impression (viewable or click) that occurred before the conversion, within the lookback window, gets credit. Although the customer clicked on a display ad on July 15th, the viewable video ad on July 29th was the last touchpoint before the August 5th purchase. The July 22nd non-viewable video ad wouldn't receive credit as it was not a viewable impression or a click. The August 5th purchase is the conversion event itself, not an ad that receives credit.