DAX using IF and AND functions - powerbi

Question

I'm trying to create a trending table with a value and a forecast. The forecast needs to start from the current month going forward. I am using this dax function:
Spend Forecast =
IF (
OR (
DIVIDE (
CALCULATE (
SUM ( refv_Spend_Cap[Spend_2019] ),
FILTER ( refv_Spend_Cap, refv_Spend_Cap[Split] = "Spend Actual" )
),
1000000
)
< 1,
DIVIDE (
CALCULATE (
SUM ( refv_Spend_Cap[Spend_2019] ),
FILTER ( refv_Spend_Cap, refv_Spend_Cap[Ind_Monthend] = "x" )
),
1000000
)
< 1
),
DIVIDE (
CALCULATE (
SUM ( refv_Spend_Cap[Spend_2019] ),
FILTER ( refv_Spend_Cap, refv_Spend_Cap[Split] = "Spend Forecast" )
),
1000000
),
""
)
The formula is calculating to check if these two conditions are met:
if there's no value then populate the forecast or if the ind monthend = 'x' then it should populate, if those two conditions are not met then it should leave it blank.
There are no syntax errors on the query but i am getting this error:
The True/False expression does not specify a column. Each True/False
expressions used as a table filter expression must refer to exactly
one column
Where did I go wrong?

Answer 1

It's very hard to comprehend such long formulas. It's the best practice to break them down into multiple measures. For example, your code can be re-writen as follows:
Create base measure:
Total Spend = SUM ( refv_Spend_Cap[Spend_2019] ) / 1000000
Now re-use the base measure to create 3 conditional measures. No need to use FILTER here:
Spend Actual = CALCULATE ( [Total Spend], refv_Spend_Cap[Split] = "Spend Actual" )
Spend X = CALCULATE ( [Total Spend], refv_Spend_Cap[Ind_Monthend] = "x" )
Spend Forecast = CALCULATE ( [Total Spend], refv_Spend_Cap[Split] = "Spend Forecast" )
Then the final result is simply:
Forecast = IF ( [Spend Actual] < 1 || [Spend X] < 1, [Spend Forecast], "")
It's much easire to understand what's happening, and easier to debug. You will also gain perfomance bonus because (usually) re-used measures are cached and calculated only once.
Try this code, if it still gives you problems, describe the new error and I'll help you fix it.
BTW, there is a popular free tool to format your DAX code:
Dax Formatter