1. Take Gansu Green Travel Code as an example, swipe left and right on the mobile phone screen, and click the icon of WeChat.
2. On the next page, click the search button in the upper right corner.
3. Then enter the key words of Gansu Health Travel Code in the search box, and click the shortcut link of Gansu Health and Wellness Committee in the search results.
4. Next, click the button of travel code in the opened page.
5. Click the travel code menu item in the pop-up drop-down menu.
6. Then click the button and apply for the travel code in the opened page.