private async void Initialize()
        {
            // Saying hello to the current user
            WelcomeMessage.Text = $"Welcome {UnicontaAPIManager.GetCurrentUsername()}";

            // Creating CompanyPicker
            CompanyPicker.ItemDisplayBinding    = new Binding("Name");
            CompanyPicker.ItemsSource           = UnicontaAPIManager.GetCompanies();
            CompanyPicker.SelectedItem          = UnicontaAPIManager.GetCurrentCompany();
            CompanyPicker.SelectedIndexChanged += CompanyPicker_SelectedIndexChanged;

            // Create CustomerPicker
            CustomerPicker.ItemDisplayBinding    = new Binding("KeyName");
            CustomerPicker.SelectedIndexChanged += CustomerPicker_SelectedIndexChanged;

            // Create ToggleButton
            ToggleButton.Clicked += ToggleButton_Clicked;

            // Refreshing Data
            await RefreshCustomers();
        }