Unknown values can be prompted because there's a field that has been left empty in the source data or a name has been used that Auto Insights deems as invalid. These include:
-
na
-
n/a
-
NA
-
N/A
-
NULL
-
nan
-
NaN",
-
,
-
-
-
.
Because Auto Insights is case sensitive values like “Null” , “unKnown”, “unknown” will be imported as a normal level, see example below:
If unknown values are present in your query it will be clearly communicated whether they will be excluded or included in the analysis.