Measure calculation based field parameter selection

[Snagalapur]

Hi,

Please suggest how to mitigate error which i'm facing with measure-based field parameter selection

Field Parameter:

Scenario = {

    ("sum of Budget", NAMEOF('MEASURES_TABLE'[FY Forecast]), 0),

    ("sum of Forecast", NAMEOF('MEASURES_TABLE'[FY Budget]), 1)

}

Measure text =

VAR InitialAmount =

SWITCH (

        TRUE(),

        SELECTEDVALUE('Scenario'[Scenario]) = 0, [FY Budget],

        SELECTEDVALUE('Scenario'[Scenario]) = 1, [FY Forecast],

        BLANK() // default value if no condition is met

    )

VAR Result = InitialAmount - SUM('Table'[actual_op])

RETURN

    Result

Error: 

[mh2587 · Accepted solution]

Measure Text = //Try this
VAR InitialAmount =
    SWITCH (
        SELECTEDVALUE('Scenario'[Name]),
        "sum of Budget", [FY Budget],
        "sum of Forecast", [FY Forecast],
        BLANK()
    )
RETURN
    InitialAmount - SUM('Table'[actual_op])