How will conversions be impacted(ifatall)after a campaign ends?

The correct answer is that there may be conversion insights coming in after a campaign ends due to the 14-day look-back window. Amazon DSP's attribution model typically uses a 14-day look-back window. This means that a conversion can be attributed to an ad impression or click that occurred up to 14 days before the conversion event. Therefore, if a customer saw or clicked an ad on the last day of the campaign, and then converted within 14 days after the campaign ended, that conversion would still be attributed to the campaign and appear in reports. The other options are incorrect because conversion insights do not stop 14 days before a campaign ends; they can continue to accrue after the campaign ends.