Through the official WeChat official account. To enter the cross-border e-commerce platform, you must first submit information on the official WeChat account. The official account of WeChat enters the cross-border e-commerce platform through the official WeChat. Cross-border electronic commerce refers to an international business activity in which transaction subjects belonging to different customs areas reach a transaction through e-commerce platform, make electronic payment and settlement, and deliver goods through cross-border electronic commerce logistics and remote storage, so as to complete the transaction.