if then if .. else if Tableau to Power BI - powerbi

Question

I have a tableau report and trying to move things into Power BI. I have a scenario where there is a lot of "IF THEN IF" situations as shown in example
IF [SYSTEM] == "ABC"
THEN [Result Flag]
ELSEIF [SYSTEM] == "XYZ" THEN
IF [Option] == 'HIGH'
AND [Activity] == 'Add' THEN
IF [Add Indicator] == "Yes" THEN "GA"
ELSEIF [Name] == "Add 1"
OR [Name] == "Add 2"
THEN "Not Eligible"
ELSE [Result Flag]
END
ELSEIF [Option] == 'Low' THEN
"2019"
ELSE "Not Eligible"
END
ELSE
In Power BI, we have IF and SWITCH functions but they support "IF THEN ELSE" situation and in my scenario, I have lot of "IF THEN IF" situation. I know Power BI DAX IF and SWITCH Function can handle it but when there are lot of values in the condition(Name field in above example) it is little cumbersome. Is there any better way to handle it?
Appreciate all your help!

Answer 1

IF THEN IF... are nested IF statements and ELSEIF can be handled with SWITCH ( TRUE (), ... ).
There are a ton of possible variations on exactly how to implement this. Here's one as an example:
SWITCH (
[SYSTEM],
"ABC", [Result Flag],
"XYZ",
SWITCH (
TRUE (),
[Option] = "High" && [Activity] = "Add",
SWITCH (
TRUE (),
[Add Indicator] = "Yes", "GA",
[Name] IN { "Add 1", "Add 2" }, "Not Eligible",
[Result Flag]
),
[Option] = "Low", "2019",
"Not Eligible"
)
)