Date difference customer orders

[Sofie]

Hi,

I want to calculate the number of days between today and the last time a customer made a purchase order. I have a table with the purchase order nr as key and then the customer nr and purchase date. For every customer I want to know how long it has been since his last puchase. I tried to make a measure with the datedifference function but it never gives the correct result. Does anybody knows how to do this? 🙂

Thanks in advance!

[Anonymous · Accepted solution]

@Sofie

Calculate Max Order Date Per Customer using ALLEXCEPT and then calculate Datediff with today.

Time Since Last Order Date =

Var LastOrderDt = CALCULATE(MAX('P6:TimeSinceLastOrder'[OrderDate]), ALLEXCEPT('P6:TimeSinceLastOrder','P6:TimeSinceLastOrder'[CustomerId]))

Var TimeSinceLastOrderDt = DATEDIFF(LastOrderDt,TODAY(),DAY)

RETURN TimeSinceLastOrderDt

[Anonymous]

Create this measure:

Days Since Last Order = DATEDIFF(MAX(Sales[OrderDate]), TODAY(), DAY)

Then use it in a table with the customer key or name

[Sofie]

This does not seems to work if I try to adjust the current date