If the window keeps popping up, it shows that the amount of the created users exceeds the upper limit.
You can solve this problem by the following methods:
1. In the [Mi Home/Xiaomi Home] APP >> select [Xiaomi Body Composition Scale S400] >> tap the three-dot icon at the upper right corner >> [User management] >> delete the members that are not commonly used;
2. In the [Mi Home/Xiaomi Home] APP >> [Profile] >> [Share] >> [Share the device] >> select [Xiaomi Body Composition Scale S400] >> delete the members as you need.
Note:
The deleted data cannot be recovered, please operate carefully.