Column that filters for specific, multiple columns and returns conditional output based on datediff

[Anonymous]

I have a table of outlets visits done by sales representatives. This table is built like this:

VisitID | Date | OutletId | ProductName | IsPresent 

VisitID: numerical identifier for a given visit.
Date: Date when visit took place.
OutletID: numerical identifier for the point of sale.

ProductID: beverage product numerical ID (products arechecked by the sales representative when visiting the outlet).
IsPresent: binary 1 or 0 value that marks 1 when the item is present and 0 when is not present for the specific visit.

A sample of the table is below (only for a certain date, just to illustrate the data structure). I have also an excel with sample data here on wetransfer: https://we.tl/t-P2V6TMrh7n

VisitID   Date    OutletID    ProductID    IsPresent

170267	12-Jun-21	9639	286	FALSE
170267	12-Jun-21	9639	229	FALSE
170267	12-Jun-21	9639	234	FALSE
170267	12-Jun-21	9639	317	FALSE
170267	12-Jun-21	9639	215	TRUE
170268	12-Jun-21	9854	286	FALSE
170268	12-Jun-21	9854	317	FALSE
170268	12-Jun-21	9854	234	TRUE
170268	12-Jun-21	9854	215	TRUE
170268	12-Jun-21	9854	229	TRUE
170269	12-Jun-21	10062	286	FALSE
170269	12-Jun-21	10062	229	FALSE
170269	12-Jun-21	10062	317	FALSE

My goal is to create a calculated column that marks as:
- "Available" when product is present (so when IsPresent = 1)
- "Out of Stock when product is not present (so when IsPresent = 0) AND in the last 90 days there has been at least one visit that marked the same product as present. 

- "Never Available" when product is not present  AND in the last 90 days there was no visit that marked the same product as present.

I have tried to follow a previous post of mine and I came up with this calculated column with no luck:

IsPresent2 =
VAR OutletID = ProductStatuses[OutletID]
VAR BeginDate = ProductStatuses[Date]
VAR ProductID = ProductStatuses[ProductID]
VAR vTable =
    ADDCOLUMNS (
        CALCULATETABLE (
            ProductStatuses,
            ProductStatuses[ProductID] = ProductID,
            ProductStatuses[IsPresent],
            ProductStatuses[OutletID] = OutletID,
            ProductStatuses[Date] <= BeginDate,
            ProductStatuses
        ),
        "DateDiff", DATEDIFF ( ProductStatuses[Date], BeginDate, DAY )
    )
RETURN
    IF (
        ProductStatuses[IsPresent] = 1,
        "Present",
        IF (
            CALCULATE (
                MAX ( ProductStatuses[IsPresent] ),
                FILTER ( vTable, [DateDiff] < 90 )
            ) = 1,
            "Out of Stock",
            "Never Available"
        )
    )

Any help is very appreciated!
Thank you 🙂

[DataInsights · Accepted solution]

@Anonymous,

Try this calculated column:

IsPresent2 = 
VAR vVisit = ProductStatuses[VisitID]
VAR vProduct = ProductStatuses[ProductID]
VAR vOutlet = ProductStatuses[OutletID]
VAR vTable =
    FILTER (
        ProductStatuses,
        ProductStatuses[VisitID] = vVisit
            && ProductStatuses[ProductID] = vProduct
            && ProductStatuses[OutletID] = vOutlet
    )
VAR vMaxDate =
    MAXX ( vTable, ProductStatuses[Date] )
VAR vVisitCountProductPresent =
    COUNTROWS (
        FILTER (
            vTable,
            ProductStatuses[Date] >= vMaxDate - 90
                && ProductStatuses[Date] < vMaxDate
        )
    )
VAR vResult =
    SWITCH (
        TRUE (),
        ProductStatuses[IsPresent] = 1, "Available",
        ProductStatuses[IsPresent] = 0
            && vVisitCountProductPresent >= 1, "Out of Stock",
        "Never Available"
    )
RETURN
    vResult

[Anonymous]

Hi @DataInsights,

I have looked at your code and then again at my code and I think both works 😄 
I don't know why it was giving me an error before but I have tried again and now it seems to be working. 

I will accept your as solution though! Thank you for the help 👍