Hi,
Can any one please help me to derive below Type Flag as column from Main Num and Alternate Number based on below logic.
if Main Num not present in Alternate Number list then it's parent
if Main Num is present in Alternate Number and also Alternate Number is present in Main Number list then it's Child- Parent
if Main Num is present in Alternate Number and Alternate Number is not present in Main Number list then it's Child
i have tried below custom column in power query but it's not working for all above three conditions.
#"Added Custom" = Table.AddColumn(#"Filled Down", "Flag", each if List.Contains(#"Filled Down"[number],[associated number]) then "Parent" else "Child")
Helpful resources
Power BI Dataviz World Championships
The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now!
Power BI Monthly Update - December 2025
Check out the December 2025 Power BI Holiday Recap!
FabCon Atlanta 2026
Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
