Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

July 28 - August 9 | Final Round of the Power BI Dataviz World Championships. This is your chance. Learn more

Reply
jfn
Frequent Visitor

To forecast, data cannot have empty values

My graph used to forecast fine, but now, after updating the dataset, I have the following error: "to forecast, data cannot have empty values". I'm not sure how to approach this one. I would like to forecast up to 2026, but it seems I have an empty field (see image below). The Y axis is coming from a measure, the code is shown below. The X axis is a calendar that was generated from 2021 to 2026. Any help would be super appreciated! Thanks

 

 

Remaining Tokens02 = 
VAR __StartingTokens = 375802 
VAR __MaxDate = MAX('Date Table'[StartDate])
RETURN
    __StartingTokens - 
    CALCULATE(
        SUM(Token2021[Credits]),
        'Date Table'[StartDate] <= __MaxDate,
        ALL(Token2021[StartDate])
    )

 

 

I want the forecast back (was very nice!)I want the forecast back (was very nice!)I this this empty field is the culpritI this this empty field is the culprit

2 REPLIES 2
v-yanjiang-msft
Community Support
Community Support

Hi @jfn ,

I think this may be caused by relationship between tables, try to modify the formula like this:

Remaining Tokens02 =
VAR __StartingTokens = 375802
VAR __MaxDate =
    MAX ( 'Date Table'[StartDate] )
RETURN
    IF (
        MAX ( [StartDate] ) <> BLANK (),
        __StartingTokens
            - CALCULATE (
                SUM ( Token2021[Credits] ),
                'Date Table'[StartDate] <= __MaxDate,
                ALL ( Token2021[StartDate] )
            )
    )

Best Regards,
Community Support Team _ kalyj

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

 

With this formulae, I still have an empty row (pic below)... Not sure if this is related, but here's how I generated the dates (for reference).

Capture.JPG

 

 

Date Table = CALENDAR(DATE(2021,01,01),TODAY())

 

 

Helpful resources

Announcements
FabCon and SQLCon Barcelona 2026

FabCon & SQLCon – Barcelona 2026

Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.

Fabric Community Sticker Design Challenge Barcelona Carousel

Fabric Community Sticker Challenge - Barcelona 2026

If you love stickers, then you will definitely want to check out our community sticker challenge, Barcelona edition!

July Power BI Update Carousel

Power BI Monthly Update - July 2026

Check out the July 2026 Power BI update to learn about new features.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.

Top Solution Authors