Merge two line chart with different timeline

Hi  abhi_kothekar ,

Here are the steps you can follow：

1. Create calculated table.

Table2 =
CALENDAR(
    DATE(
        2023,1,1),
        DATE(
            2023,12,31))

2. Create calculated table.

True =
var _table1=
SUMMARIZE(
    'Table2','Table2'[Year],'Table2'[Month],
    "Cumulative1",
SUMX(
    FILTER(ALL('Table'),
    YEAR('Table'[Desp Plan])='Table2'[Year]&&
    MONTH('Table'[Desp Plan])='Table2'[Month]),[Planned Value]),
    "Cumulative2",
SUMX(
    FILTER(ALL('Table'),
    YEAR('Table'[Desp Actual])='Table2'[Year]&&
    MONTH('Table'[Desp Actual])='Table2'[Month]),[Desp value]))
var _table2=
ADDCOLUMNS(
    _table1,"Cumulative Plann",
    IF(
        [Cumulative1]=BLANK(),BLANK(),
    SUMX(FILTER(_table1,[Year]=[Year]&&[Month]<=EARLIER([Month])),[Cumulative1])))
return
ADDCOLUMNS(
    _table2,"Cumulative Desp",
     IF(
        [Cumulative2]=BLANK(),BLANK(),   
    SUMX(FILTER(_table1,[Year]=[Year]&&[Month]<=EARLIER([Month])),[Cumulative2])))

3. Result:

Best Regards,

Liu Yang

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