How to find number of customers in a SCD2 type table

Hello Everyone,

I have an SCD2 type table like below.



I have a date table and time table as well. I want to find out the number of distinct customers when the user selects a date or show number of users by date so on.. Does this model help me do that? It's a typical SCD Type 2 dimension I am using for my Data.

Thanks for your help in advance.