USE [CCS] SELECT ISNULL(be.[FY],'Total') as FY, sum(be.[Invoice Amount]) as 'Total Amount', DATEDIFF (DAY,be.[Due Date] ,ft.[EndDate])as Aged, CASE WHEN Aged <=365 then sum(be.[Invoice Amount]),0) as 'UnderOneYear'---this is where i get the error ',' WHEN Aged >365 and Aged <=730 then sum(be.[Invoice Amount]),0) as '1_2 years' WHEN Aged >730 and Aged <=1095 then sum(be.[Invoice Amount]),0) as '2_3 years' WHEN Aged >1095 then sum(be.[Invoice Amount]),0) as 'Over_3_years' END as Aged FROM ([dbo].[FiscalDateTable] as ft INNER JOIN ([dbo].[TB_DATA_All] as be LEFT JOIN ([dbo].[Master Reason Codes List] AS mrc ON be.[Reason Code] = mrc.[Reason Code]) ON ft.[Fiscal YYYY-MM] = be.FY) INNER JOIN ([dbo].[Master Profit Center List_All Divisions_New] as mpc ON be.[Profit Center] = mpc.[Profit Centers]) AND be.CoCd = mpc.[Company FY15]) WHERE (be.[Reconciliation Account]) LIKE'%24%' AND mpc.New_Div ='DI' AND be.FY BETWEEN '2018-12' AND '2019-12' AND be.[Invoice Amount]<0 GROUP BY be.[FY], be.[Aged]