Showing Labels only for selected Customers

1) Create a Parameter on "Customer Name".

 

2) Then create a calculated field as like below,

Name: Showing sales for Selected Customer

Syntax: if [Customer_Field] = [Customer_Parameter] then [Sales] end

3) now you can place all required Dimensions & Measures onto view.

4) right click on "Parameter" on the parameter window, then click on "Show Parameter Control".

5) Then drag the above calculated field  onto Labels.

 

​