add one year to date column

[andrea_chiappo]

This should be very easy, yet it doens't work

I tried both creating a new column and a new measure to get dates one year 

ahead with respect to the date column you see in the attachment.  

As you can see, the createdDate is in Date format.  

I tried the first logical thing:  

LastDate = DATEADD('TableName'[createdDate], 1, YEAR)

But I get the error (that's starting to become very annoying) that  

a table of multiple values was supplied where a single value was expected

I tried using DISTINCT() and even the function which usually prevents DAX from complainig, 

FIRSTNONBLANK, even if I'm absolutely unsure why, but time time neither of them works.

Why doesn't it work?

Why can't it be easy to evaluate things with DAX?

Why most functions do not operate as the refernce says?

[V-lianl-msft]

Hi @andrea_chiappo ,

If the dates in the current context do not form a contiguous interval, the function returns an error. See this thread for a more comprehensive explanation.

You can try the formula mentioned in @amitchandak .

You can also try this:

LastDate = DATEADD('TableName'[createdDate].[DATE], 1, YEAR)

Best Regards,
Liang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[andrea_chiappo]

Nope, it doesn't allow this operation, saying that:  

Column reference to 'createdDate' in table 'DimCustomers'cannot be used with a variation 'Date' because it does not have any  

 'createdDate' looks like this

[amitchandak · Accepted solution]

@andrea_chiappo 

As a new column is should have worked. Check are you creating a measure or column

You can also try a new measure like

New column = Date(year('TableName'[createdDate])+1,month('TableName'[createdDate]),day('TableName'[createdDate]))