dax formula help (Distribution)

HI erhang

Try this MEASURE

Distributed Stocks =
VAR stock_to_distirubute =
    CALCULATE (
        SUM ( Table2[Stock Qty] ),
        CROSSFILTER ( Table2[Product], Table1[Product], BOTH )
    )
VAR Cumulativestock =
    CALCULATE (
        SUM ( Table1[Requested Qty] ),
        FILTER (
            ALLEXCEPT ( Table1, Table1[Product] ),
            Table1[Rquested Delivery Date]
                <= SELECTEDVALUE ( Table1[Rquested Delivery Date] )
        )
    )
VAR myqty =
    IF (
        Cumulativestock > stock_to_distirubute,
        SELECTEDVALUE ( Table1[Requested Qty] )
            - ( Cumulativestock - stock_to_distirubute ),
        SELECTEDVALUE ( Table1[Requested Qty] )
    )
RETURN
    IF ( myqty < 0, 0, myqty )

Hi erhang

To solve this situation, first add a calculated column as follows

Adjusted Delivery Date =
Table1[Rquested Delivery Date]
    + Table1[Document Number] / 10000

Now you can revise the original measure by replacing Requested Delivery Date with Adjsuted Delivery Date

i.e.

Distributed Stocks =
VAR stock_to_distirubute =
    CALCULATE (
        SUM ( Table2[Stock Qty] ),
        CROSSFILTER ( Table2[Product], Table1[Product], BOTH )
    )
VAR Cumulativestock =
    CALCULATE (
        SUM ( Table1[Requested Qty] ),
        FILTER (
            ALLEXCEPT ( Table1, Table1[Product] ),
            Table1[Adjusted Delivery Date]
                <= SELECTEDVALUE ( Table1[Adjusted Delivery Date] )
        )
    )
VAR myqty =
    IF (
        Cumulativestock > stock_to_distirubute,
        SELECTEDVALUE ( Table1[Requested Qty] )
            - ( Cumulativestock - stock_to_distirubute ),
        SELECTEDVALUE ( Table1[Requested Qty] )
    )
RETURN
    IF ( myqty < 0, 0, myqty )