Expressions that yield variant data-type cannot be used to define calculated columns.

[Anonymous]

Hey Guys

BIZ DATE = if(and(Format([ATD],"")=blank(),format([BIZ DAYS],"")=blank()),"",

var dateidx = calculate( max('Calendar'[WorkingDayIndex] ) , 'P FILES'[ATD] = RELATED('Calendar'[Date] ) )

var newdateidx = dateidx + 'P FILES'[BIZ DAYS]

return

calculate(

max('Calendar'[Date]),

filter(

ALL('Calendar'),

'Calendar'[WorkingDayIndex] = newdateidx

&& 'Calendar'[IsWorkDay] = 1

)

)

)

Data is company sensetive.

I found a forum that suggested creating a calendar table to add days to a date and that seems to work (everything after the first line). However, the if statement will not seem to work. I understand that I am looking at two columns with different formatting (one is date and the other is text) I have tried using several combinations of value and format functions to no avail. I cannot change the formatting of these columns as their formatting is necessary for other calculated columns. I have tried making helper columns a little, but haven't had much luck.

Also, the ATD column, which is date format, has blanks (null) in it.

Any suggestions are appreciated.

-Tad

[v-juanli-msft · Accepted solution]

Hi @Anonymous 

This error indicates you try to use both date and text format values in one calculated column, so Power BI can't analyze the data type for this calcualted column.

eg. Column=IF([CL1]=1,DATE(2009,1,1)," ")

I can reproduce your problem, then i split two formula in two column

Finally, you can modify the column as below to make it work

BIZ DATE modify = 
var dateidx = calculate( max('Calendar'[WorkingDayIndex] ) , Sheet1[ATD] = RELATED('Calendar'[Date] ) )
var newdateidx = dateidx + Sheet1[BIZ DAYS]

var datevalue=
calculate(
max('Calendar'[Date]),
filter(
ALL('Calendar'),
'Calendar'[WorkingDayIndex] = newdateidx
&& 'Calendar'[IsWorkDay] = 1
)
)
return if(NOT(and(Format([ATD],"")=blank(),format([BIZ DAYS],"")=blank())),datevalue)

Best Regards
Maggie

Community Support Team _ Maggie Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.