Why SWITCH does not work as expected replace for my nested IFs?

[Agustina]

 Hello colleagues,

I am working creating a calculated column to get different due dates based on each item priority and status.

I used to have nested IFs and worked perfectly fine, but I would like to be more efficient and use SWITCH instead, although I cannot get it to fully work - most of the rows I get are blanks.

Here are both exppressions:

DueDate_OldButWorking =

IF(

NOT(ISBLANK('2021 Cases'[Submission Date])) && RELATED(AUX_DetailedStatus[Level]) > 4,

IF(

RELATED(AUX_Priority[Level]) = 3,

'2021 Cases'[Submission Date] + 21,

IF(

RELATED(AUX_Priority[Level]) = 1 || RELATED(AUX_DetailedStatus[Level]) = 2,

'2021 Cases'[Submission Date] + 5,

BLANK()

)

)

)

DueDate_New =

SWITCH(

TRUE(),

NOT(ISBLANK('2021 Cases'[Submission Date])) && RELATED(AUX_DetailedStatus[Level]) > 4 && RELATED(AUX_Priority[Level]) = 3, DATEADD('2021 Cases'[Submission Date], 21, DAY),

NOT(ISBLANK('2021 Cases'[Submission Date])) && RELATED(AUX_DetailedStatus[Level]) > 4 && RELATED(AUX_Priority[Level]) = 2, DATEADD('2021 Cases'[Submission Date], 5,DAY),

NOT(ISBLANK('2021 Cases'[Submission Date])) && RELATED(AUX_DetailedStatus[Level]) > 4 && RELATED(AUX_Priority[Level]) = 1, DATEADD('2021 Cases'[Submission Date], 5,DAY),

BLANK()

)

Can you identify what is that I am not doing correctly?

Many thanks in advance!

[Anonymous]

@Agustina 

Just a quickie: The fact that you get 2 different results from IF and SWITCH only mean that your SWITCH is NOT logically equivalent to your IF. You just make a logical mistake when you translate into SWITCH.

[amitchandak · Accepted solution]

@Agustina , Try like

DueDate_New =
if(NOT(ISBLANK('2021 Cases'[Submission Date])) ,
SWITCH(
TRUE(),
RELATED(AUX_DetailedStatus[Level]) > 4 && RELATED(AUX_Priority[Level]) = 3, DATEADD('2021 Cases'[Submission Date], 21, DAY),
RELATED(AUX_DetailedStatus[Level]) > 4 && RELATED(AUX_Priority[Level]) in {1,2}, DATEADD('2021 Cases'[Submission Date], 5,DAY),
BLANK()
), blank())