IFS( expression1, result1[, expression2, result2][, …] )
expression1, expression2, ... are any boolean values or expressions that can be TRUE or FALSE
result1, result2, ... are the values that are returned if the logical test is TRUE
IFS( expression1, result1, expression2, result2, expression3, result3 ) is executed as
IF expression1 is TRUE
ELSE IF expression2 is TRUE
ELSE IF expression3 is TRUE
To get a default result should no expression be TRUE, add a last expression that is always TRUE, like TRUE or 1=1 followed by the default result.
If there is a result missing for an expression or is no expression is TRUE, a #N/A error is returned.
If expression is neither TRUE or FALSE, a #VALUE error is returned.