Process
You only have to access from the mobile device to the account's detail you want to modify and then:
From Android
Edit button (Pencil)
Update location
Accept the message: "The account location will be updated with the current location"
From iPhone/iPad
Edit button (Pencil)
Update Location
Aceptar el mensaje que te dice: "The account will be updated with the current location"
Notes
It is important to have GPS as Wi-Fi and 3G enabled in the device
Check that I am allocated correctly