1. Open the Racer app and enter the "My" page.

2. Click on the "Settings" icon to enter the "Account and Security" page.

3. Click "Group Buying Authentication" to enter the Group Buying Authentication page.

4, follow the prompts to fill in the relevant information, including business name, business license and so on.

5, after submitting the certification materials, waiting for Racer audit. After passing the audit, you can successfully open the Racer group buy.