Engaged View-Through Attribution (EVTA) measures the conversions that take place after a user views an ad for six seconds or more but doesn't click, then goes on to convert within the attribution window.
To view EVTA conversions:
Log in to TikTok Ads Manager.
Go to the Campaign tab.
Click Custom table.
Click Custom columns.
Search for "EVTA".
Select the metrics you want to view EVTA for.
Click Confirm.