Forum Discussion
Calculate different end dates.
- 1 year ago
Hi Matt_JEM ,
The circular dependency error occurs because DAX is attempting to evaluate one column (JEMK04Date) while it depends on calculations within the same table (vw_Rep_Inv_Movements). This happens due to a dependency chain that DAX cannot resolve.
Here’s how you can resolve this issue:
Instead of calculating JEMK04Date in the same table, create a calculated table that pre-computes JEMK03Date and JEMK04Date for each stock code. This breaks the dependency loop.
MovementDatesTable = ADDCOLUMNS ( SUMMARIZE ( 'vw_Rep_Inv_Movements', 'vw_Rep_Inv_Movements'[StockCode], 'vw_Rep_Inv_Movements'[First Entry Date] ), "JEMK03Date", CALCULATE ( MIN('vw_Rep_Inv_Movements'[EntryDate]), 'vw_Rep_Inv_Movements'[NewWarehouse] = "JEMK03" ), "JEMK04Date", CALCULATE ( MIN('vw_Rep_Inv_Movements'[EntryDate]), 'vw_Rep_Inv_Movements'[NewWarehouse] = "JEMK04", 'vw_Rep_Inv_Movements'[Warehouse] = "JEMK03" ) )This creates a separate table (MovementDatesTable) with precomputed values for each stock code.
Modify your measure to refer to the calculated table rather than relying on computed columns in the same table.
Completion Date = VAR StartDate = CALCULATE ( MIN('MovementDatesTable'[First Entry Date]), 'MovementDatesTable'[StockCode] = SELECTEDVALUE('vw_Rep_Inv_Movements'[StockCode]) ) VAR JEMK04Date = CALCULATE ( MIN('MovementDatesTable'[JEMK04Date]), 'MovementDatesTable'[StockCode] = SELECTEDVALUE('vw_Rep_Inv_Movements'[StockCode]) ) VAR CalculationStartDate = IF ( NOT ISBLANK(JEMK04Date), JEMK04Date + 1, StartDate + 1 ) VAR DateTable = FILTER ( ADDCOLUMNS ( CALENDAR (CalculationStartDate, CalculationStartDate + 50), "Weekday", WEEKDAY([Date], 2) ), [Weekday] <= 5 ) VAR WorkingDaysTable = ADDCOLUMNS ( DateTable, "WorkingDayRank", RANKX (DateTable, [Date], , ASC, DENSE) ) RETURN MINX ( FILTER ( WorkingDaysTable, [WorkingDayRank] = 20 ), [Date] )Moving the intermediate calculations (JEMK03Date and JEMK04Date) to a separate calculated table removes dependencies within the same table.
DAX can then reference precomputed values without causing a circular dependency.
Best regards,
Hi Matt_JEM ,
Here’s how you can modify your DAX measure to include the logic for determining the completion date based on whether the stock code moves to JEMK03 and subsequently to JEMK04:
Completion Date =
VAR StartDate = 'vw_Rep_Inv_Movements'[First Entry Date]
VAR DaysToAdd = 20
-- Find the date when the stock code moved to JEMK03
VAR JEMK03Date =
CALCULATE (
MIN('vw_Rep_Inv_Movements'[Movement Date]),
'vw_Rep_Inv_Movements'[NewWarehouse] = "JEMK03"
)
-- Find the date when the stock code moved to JEMK04 after JEMK03
VAR JEMK04Date =
CALCULATE (
MIN('vw_Rep_Inv_Movements'[Movement Date]),
'vw_Rep_Inv_Movements'[NewWarehouse] = "JEMK04",
'vw_Rep_Inv_Movements'[Movement Date] > JEMK03Date
)
-- Determine the calculation start date based on the conditions
VAR CalculationStartDate =
IF (
NOT ISBLANK(JEMK03Date) && NOT ISBLANK(JEMK04Date),
JEMK04Date, -- Use the date stock moved to JEMK04 if it passed through JEMK03
StartDate -- Otherwise, use the First Entry Date
)
-- Create a table of dates considering only working days
VAR DateTable =
FILTER (
ADDCOLUMNS (
CALENDAR (CalculationStartDate, CalculationStartDate + DaysToAdd + 30), -- Create a date range
"Weekday", WEEKDAY([Date], 2) -- 2 means Monday=1, Sunday=7
),
[Weekday] <= 5 -- Exclude weekends
)
-- Rank the working days
VAR WorkingDaysTable =
ADDCOLUMNS (
DateTable,
"WorkingDayRank", RANKX ( DateTable, [Date], , ASC, DENSE )
)
-- Return the calculated completion date
RETURN
MINX (
FILTER (
WorkingDaysTable,
[WorkingDayRank] = DaysToAdd
),
[Date]
)
- JEMK03Date and JEMK04Date: These variables calculate the respective movement dates for JEMK03 and JEMK04.
- JEMK03Date finds the first date when the stock code moved to JEMK03.
- JEMK04Date finds the first date after JEMK03Date when the stock code moved to JEMK04.
- CalculationStartDate: Determines the starting date for the calculation:
- If the stock code moved through both JEMK03 and JEMK04, the calculation starts from JEMK04Date.
- Otherwise, it starts from the "First Entry Date."
- Completion Date Logic: The rest of the code remains the same, calculating the 20th working day from the selected start date.
Use Case:
- If the stock code does not move to JEMK03, the calculation starts from the "First Entry Date."
- If the stock code moves to JEMK03 and subsequently to JEMK04, the calculation starts from JEMK04Date.
This formula ensures that the completion date reflects the conditional logic you specified.
Best regards,
- Matt_JEM1 year agoHelper I
DataNinja777
I have implemented the code below and keep getting the following error. Do you have any suggestions on how to resolve this? I thank you in advance for your time.
"A circular dependency was detected: vw_Rep_Inv_Movements[JEMK04Date], vw_Rep_Inv_Movements[Column], vw_Rep_Inv_Movements[JEMK04Date]."
I determine JEMK04Date =CALCULATE (MIN('vw_Rep_Inv_Movements'[EntryDate]),'vw_Rep_Inv_Movements'[NewWarehouse] = "JEMK04",'vw_Rep_Inv_Movements'[Warehouse] = "JEMK03")Then I get the following result . The JEMK04DATE is the correct date when the stock code have moved from JEMK03 to JEMK04. My expected completion date is the 11 NOv 2024
First Entry Date JEMK04Date StockCode 2024-10-09 00:00:00 F00020-INC001-A01-L00-T00 2024-10-09 00:00:00 2024-10-14 00:00:00 F00020-INC001-A01-L00-T00 2024-10-09 00:00:00 F00020-INC001-A01-L00-T07 2024-10-09 00:00:00 2024-10-14 00:00:00 F00020-INC001-A01-L00-T07 Completion Date =VAR StartDate = 'vw_Rep_Inv_Movements'[First Entry Date]VAR DaysToAdd = 20-- Determine the calculation start date based on the conditionsVAR CalculationStartDate =IF (NOT ISBLANK('vw_Rep_Inv_Movements'[JEMK04Date]),'vw_Rep_Inv_Movements'[JEMK04Date] + 1, -- Use the date stock moved to JEMK04 and start from the next dayStartDate + 1 -- Otherwise, use the First Entry Date and start from the next day)-- Create a table of dates considering only working daysVAR DateTable =FILTER (ADDCOLUMNS (CALENDAR (CalculationStartDate, CalculationStartDate + DaysToAdd + 30), -- Create a date range"Weekday", WEEKDAY([Date], 2) -- 2 means Monday=1, Sunday=7),[Weekday] <= 5 -- Exclude weekends)-- Rank the working daysVAR WorkingDaysTable =ADDCOLUMNS (DateTable,"WorkingDayRank", RANKX ( DateTable, [Date], , ASC, DENSE ))-- Return the calculated completion dateRETURNMINX (FILTER (WorkingDaysTable,[WorkingDayRank] = DaysToAdd),[Date])- DataNinja7771 year agoSuper User
Hi Matt_JEM ,
The circular dependency error occurs because DAX is attempting to evaluate one column (JEMK04Date) while it depends on calculations within the same table (vw_Rep_Inv_Movements). This happens due to a dependency chain that DAX cannot resolve.
Here’s how you can resolve this issue:
Instead of calculating JEMK04Date in the same table, create a calculated table that pre-computes JEMK03Date and JEMK04Date for each stock code. This breaks the dependency loop.
MovementDatesTable = ADDCOLUMNS ( SUMMARIZE ( 'vw_Rep_Inv_Movements', 'vw_Rep_Inv_Movements'[StockCode], 'vw_Rep_Inv_Movements'[First Entry Date] ), "JEMK03Date", CALCULATE ( MIN('vw_Rep_Inv_Movements'[EntryDate]), 'vw_Rep_Inv_Movements'[NewWarehouse] = "JEMK03" ), "JEMK04Date", CALCULATE ( MIN('vw_Rep_Inv_Movements'[EntryDate]), 'vw_Rep_Inv_Movements'[NewWarehouse] = "JEMK04", 'vw_Rep_Inv_Movements'[Warehouse] = "JEMK03" ) )This creates a separate table (MovementDatesTable) with precomputed values for each stock code.
Modify your measure to refer to the calculated table rather than relying on computed columns in the same table.
Completion Date = VAR StartDate = CALCULATE ( MIN('MovementDatesTable'[First Entry Date]), 'MovementDatesTable'[StockCode] = SELECTEDVALUE('vw_Rep_Inv_Movements'[StockCode]) ) VAR JEMK04Date = CALCULATE ( MIN('MovementDatesTable'[JEMK04Date]), 'MovementDatesTable'[StockCode] = SELECTEDVALUE('vw_Rep_Inv_Movements'[StockCode]) ) VAR CalculationStartDate = IF ( NOT ISBLANK(JEMK04Date), JEMK04Date + 1, StartDate + 1 ) VAR DateTable = FILTER ( ADDCOLUMNS ( CALENDAR (CalculationStartDate, CalculationStartDate + 50), "Weekday", WEEKDAY([Date], 2) ), [Weekday] <= 5 ) VAR WorkingDaysTable = ADDCOLUMNS ( DateTable, "WorkingDayRank", RANKX (DateTable, [Date], , ASC, DENSE) ) RETURN MINX ( FILTER ( WorkingDaysTable, [WorkingDayRank] = 20 ), [Date] )Moving the intermediate calculations (JEMK03Date and JEMK04Date) to a separate calculated table removes dependencies within the same table.
DAX can then reference precomputed values without causing a circular dependency.
Best regards,