Calculate when start production (excluding weekends)

Hi Adamplau ,

You can update the formula of the calculated column [Prod. Start Date (exc. weekends)] as below in the table 'Orders' and check if it can return your expected result... It is not required to create any relationship between the table 'Orders' and 'Date' table.

Prod. Start Date (exc. weekends) =
VAR DateIdx =
    CALCULATE (
        MAX ( 'Date'[WorkingDayIndex] ),
        FILTER ( 'Date', 'Date'[Date] = 'Orders'[ProductionDueDate] )
    )
VAR NewDateIdx = DateIdx - 'Orders'[ProdactionDurationInDays]
RETURN
    CALCULATE (
        MAX ( 'Date'[Date] ),
        FILTER (
            ALL ( 'Date' ),
            'Date'[WorkingDayIndex] = NewDateIdx
                && 'Date'[IsWorkingDay] = TRUE()
        )
    )

Best Regards