From 28 June to 1 July, China Customs attended 2022 WCO Knowledge Academy for Customs and Trade (KACT 2022) via virtual platform, and shared its innovative practices under the sessions of "single window" and “e-commerce”. China Customs' application of International Trade Single Window Aviation Logistics Public Information Platform and implementation of facilitative measures for cross-border e-commerce return goods were well received by the participants. More than 3,000 customs and business practitioners from over 100 countries (regions) participated in the event.