need help with dax based on dates

[Krijgersss]

hello i need some help. i have a colum with order-dates now i need a formule that shows me if someone placed a order for the first time its a "new costumer" if the customer placed a second order then they will be a "KNow customer"

so i need a formule based on my "Order-dates" how many New customers there are. in the screenshot you will see my data model

[bhanu_gautam · Accepted solution]

@Krijgersss , Create a Calculated Column to Identify the First Order Date for Each Customer:

FirstOrderDate =
CALCULATE(
MIN('Orders'[OrderDate]),
ALLEXCEPT('Orders', 'Orders'[CustomerID])
)

Create a Calculated Column to Determine if the Order is the First Order:

IsFirstOrder =
IF(
'Orders'[OrderDate] = 'Orders'[FirstOrderDate],
"New Customer",
"Known Customer"
)

Create a Measure to Count the Number of New Customers:

NewCustomerCount =
CALCULATE(
DISTINCTCOUNT('Orders'[CustomerID]),
'Orders'[IsFirstOrder] = "New Customer"
)

Create a Measure to Count the Number of Known Customers:

KnownCustomerCount =
CALCULATE(
DISTINCTCOUNT('Orders'[CustomerID]),
'Orders'[IsFirstOrder] = "Known Customer"
)