
# setUserName

In this configuration, the app user identifier is the required parameter. This identifier is used to identify the user of the app and is necessary for the proper functioning of the app.

> Important notes : 
>
>  1. This identifier must be unique mean that it's not allowed > for two devices to login tp P&P using same username
>
> >Violating this instruction will affect the positioning experience.

```java
setUserName(name)
```