Split Test is now available for iOS 14 dedicated campaigns. Split Test is valuable since it uses SKAN-reported conversions for each ad group under a Split Test campaign, unlike a regular multi ad-group dedicated campaign which uses modeled reporting at the group level. 

Main Impact

iOS 14 has minimum impact on the performance of Split Test: Still expect 72 hours latency of conversion postback to TikTok Ads Manager due to SKAN’s general postback time window. 

Recommendation

• Set an appropriate test budget. You can reference our suggested budget upon creating a split test, and we recommend it to be at least 80% of the power value.

• Allocate an adequate testing duration. We recommend testing for at least 7 days for reliable test results.

• Set a large audience exceeding its previous size for sufficient sample size.

• Set up test groups with large differences in variables and extend the observation window to 72 hours to identify the winning group by distinct results in sufficient time.