Mutual recognition can only be achieved through national data sharing. Take Shanghai as an example. For users who have applied for health codes in other provinces (autonomous regions and municipalities) but have not applied for Ankang codes, you can open the know-it-all Alipay applet or App, click the Ankang code service icon and enter the service homepage (unclaimed page). After clicking the button "Use health codes of other provinces (autonomous regions and municipalities)", the system can obtain users' applications in other provinces (autonomous regions and municipalities) through the docked national interface.
Inter-provincial mutual recognition of health codes can be used in many places, not just local ones, which greatly improves the convenience of users' travel. Carrying out "inter-provincial mutual recognition" of health codes can completely avoid many inconveniences and troubles caused by "regional restrictions" "Inter-provincial mutual recognition" realizes inter-provincial mutual recognition of "health code" by three ways: clear code, check code and transcoding, which realizes the access of "health code" data of migrant workers, avoids repeated detection and authentication, and is convenient, labor-saving and improves efficiency. It can be described as a "win-win" move.