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Anonymous's avatar
Anonymous
Not applicable
9 years ago
Solved

Calculate Days between OrderDate per Customer where Order date is in the same Column???

I'll start with Please Help!! After Hours of trialing theories i need some help,   I have a data set which is purely sales data. containing Customer ID, CustomerName, OrderDate, Items Ordered etc....
Need Help
  • Anonymous's avatar
    Anonymous
    9 years ago

    Sorry Matt,

     

    Got it working not sure if it was me having the .Date on the date column and i selected CustomerID for the Values bit, but got rid of the .Date and ID so its like the columns below and done manual calculations to verify the data its outputing and its working now

     

    So this is what i ended up with;

     

    First Order = CALCULATE(FIRSTDATE(TableName[Date]),VALUES(Tablename[Date]))

    Last Order = CALCULATE(LASTDATE(TableName[Date]),VALUES(Tablename[Date]))

    Number of Orders = DISTINCTCOUNT(TableName[OrderID])

    First to Last Date period = ((TableName[Last Order] - TableName[First Order])*1)

    Today = Today()

    Days Since Last Order = TableName[Today].[Date] - TableName[Order Date].[Date] * 1

     

    Avg Order Period = divide(TableName[First to Last Date period],TableName[Number of Orders])

    &

    Difference = CALCULATE(MIN([Days Since Last Order]) - [Avg Order Period])

     

    Then when Difference gets to 0 its time to call,

     

    Seeing it like the above makes it so clear, Thanks Matt, Great Work !!!

     

    Thanks,

     

    J

MattAllington's avatar
MattAllington
Icon for Community Champion rankCommunity Champion
9 years ago

I realise this seems easy, but it is not so easy - hope that makes you feel any better :-).    Power Pivot is not really built to handle relative comparison between rows in a table.  You can do it, but it is not super easy.  But as I think about your problem in a different way, I think there may be an easier way to solve the problem that might meet your needs.  

 

Break the problem into pieces

 

Using Adventure Works as an example, you could write measures like this. If you put customer name on a visual (say table) with these measures, I think it will give you what you need.

 

Last Order=CALCULATE(LASTDATE(Sales[OrderDate]),VALUES(Customers[CustomerKey]))

First Order=CALCULATE(FIRSTDATE(Sales[OrderDate]),VALUES(Customers[CustomerKey]))

Total Orders=DISTINCTCOUNT(Sales[SalesOrderNumber])

First to Last Date period=[Last Order] - [First Order]

Edit (sorry, previous formula was wrong):  Avg Order Period=divide([First to Last Date period],[Total Orders] -1 )

Anonymous's avatar
Anonymous
Not applicable
9 years ago

the measures seem to be working,

 

Just need to include a daterange in the measures cause i have 13 years worth of data, but realistically a 4 year calculations should be enough to keep the information relevant and accurate.

 

Is it possible to include a daterange / date period wrap in the measure so they only look at the last 4 years?

 

Thanks for the help though, looking better already!!!

 

Thanks,

 

Josh