First and Second Product

Anonymous 

I think if you can explain the logic of First and 2nd Columns then solution will be much easier, What is the basis of the new columns

Anonymous seems like your business rule for 1st and 2nd product is to get based on the date within each user group.

See attached solution, you can tweak it as you see fit.

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Hi Anonymous 

Please try the following:

first product = 
SELECTCOLUMNS(
    TOPN(
        1,
        FILTER(ALL(fact_table_d),
            fact_table_d[Customer]=EARLIER(fact_table_d[Customer])
        )
        ,
        fact_table_d[Date],
    ASC 
    )
,"any name, it does not matter"
,fact_table_d[Product]
)

This calulcated column identifies all rows of the customer and sorts it by date. Then it takes value of the product column from the first row which is the first product bought by the customer.

for the seconf product use the following

second product = 
SELECTCOLUMNS(
    TOPN(
        1,
        FILTER(ALL(fact_table_d),
            fact_table_d[Customer]=EARLIER(fact_table_d[Customer])
            && fact_table_d[Product] <> EARLIER(fact_table_d[first product])
        )
        ,
        fact_table_d[Date],
    ASC 
    )
,"any name"
,fact_table_d[Product]
)

It is nearly the same query with the only exception that it also filters out the first product bought. So taht if somebody bought the same product twice in a row it will be ignored.

Best regards

Mikelytics

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