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Microsoft Learn
learn.microsoft.com โ€บ en-us โ€บ dax โ€บ isblank-function-dax
ISBLANK function (DAX) - DAX | Microsoft Learn
April 25, 2024 - //Sales to Previous Year Ratio = IF( ISBLANK('CalculatedMeasures'[PreviousYearTotalSales]) , BLANK() , ( 'CalculatedMeasures'[Total Sales]-'CalculatedMeasures'[PreviousYearTotalSales] ) /'CalculatedMeasures'[PreviousYearTotalSales])
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DAX Guide
dax.guide โ€บ isblank
ISBLANK โ€“ DAX Guide
1 week ago - Learn more about ISBLANK in the following articles: ... This article describes a counterintuitive behavior of BLANK in DAX measures affecting Power BI, Analysis Services, and Power Pivot. That behavior could cause mistakes in a report using alternate expressions of the same calculation.
Discussions

DAX TIP: BLANK() vs ISBLANK()
All, I was recently working with @The_Bishop on a set of complex conditional formatting measures, and ran into a situation where we were getting some very unexpected results that after substantial effort traced back to the difference in how the DAX BLANK vs. ISBLANK functions treat zeros and ... More on forum.enterprisedna.co
๐ŸŒ forum.enterprisedna.co
1
4
August 28, 2021
Calculated Column, but don't calculate if a record is blank?
IF('table'[enddate]=blank(),blank(),{expression}) You could also do this in M using the same pattern. on calculated columns, always favor doing it upstream when possible. More on reddit.com
๐ŸŒ r/PowerBI
7
4
September 6, 2019
More than 1 argument for ISBLANK?
IF ( ISBLANK( t[c1] ) && ISBLANK ( t[c2 ) .... Or version Replace && with || More on reddit.com
๐ŸŒ r/PowerBI
4
2
April 10, 2019
What do i write if my date is blank?
Are they just blank, or null? If null, IIRC you can compare with NULL(). More on reddit.com
๐ŸŒ r/PowerBI
2
1
May 24, 2018
People also ask

How does the `if isblank` function help in data analysis?
This function helps identify null values in a column, allowing analysts to filter out incomplete data or substitute missing values with defaults, leading to more informed decisions.
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creatum.online
creatum.online โ€บ home โ€บ how to use dax if isblank: a step-by-step guide
How to Use DAX IF ISBLANK: A Step-by-Step Guide | Creatum GmbH
What is the purpose of the DAX function `if isblank`?
The `if isblank` function determines whether a value is blank or empty, returning TRUE for blank values and FALSE otherwise. It is essential for analysts to manage and manipulate data sets effectively.
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creatum.online
creatum.online โ€บ home โ€บ how to use dax if isblank: a step-by-step guide
How to Use DAX IF ISBLANK: A Step-by-Step Guide | Creatum GmbH
What is the syntax for the `if isblank` function?
The syntax is `function(value)`, where 'value' represents the expression to evaluate for blankness.
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creatum.online
creatum.online โ€บ home โ€บ how to use dax if isblank: a step-by-step guide
How to Use DAX IF ISBLANK: A Step-by-Step Guide | Creatum GmbH
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Microsoft Fabric Community
community.fabric.microsoft.com โ€บ t5 โ€บ Desktop โ€บ Text-value-if-calculate-DAX-output-is-blank โ€บ td-p โ€บ 3016788
Text value if calculate DAX output is blank - Microsoft Fabric Community
January 12, 2023 - Measure = IF(ISBLANK(CALCULATE( SUM('Table' [COUNT]), 'Date DIM Table' [Today] IN { TRUE } ), "No Data", CALCULATE( SUM('Table' [COUNT]), 'Date DIM Table' [Today] IN { TRUE } ) Message 5 of 5 ยท 14,649 Views ยท 0 ยท Reply ยท Post Reply ยท Announcements ยท Join the Fabric FabCon Global Hackathonโ€”running virtually through Nov 3. Open to all skill levels. $10,000 in prizes! Register ยท Check out the October 2025 Power BI update to learn about new features.
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Microsoft Fabric Community
community.fabric.microsoft.com โ€บ t5 โ€บ Desktop โ€บ Power-bi-measure-ISBLANK-AND-NOT-ISBLANK โ€บ m-p โ€บ 557344
Solved: Power bi measure ISBLANK AND NOT ISBLANK - Microsoft Fabric Community
November 1, 2018 - Power bi measure ISBLANK AND NOT ISBLANK ยท Reply ยท Topic Options ยท Subscribe to RSS Feed ยท Mark Topic as New ยท Mark Topic as Read ยท Float this Topic for Current User ยท Bookmark ยท Subscribe ยท Printer Friendly Page ยท All forum topics ยท Previous Topic ยท
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Creatum GmbH
creatum.online โ€บ home โ€บ how to use dax if isblank: a step-by-step guide
How to Use DAX IF ISBLANK: A Step-by-Step Guide | Creatum GmbH
January 15, 2025 - For example, if the column is designated as text, confirm that it is genuinely empty and free of spaces, as spaces are not recognized as blanks. Additionally, when utilizing dax if isblank within calculated columns, be mindful of the calculationโ€™s contextโ€”this can significantly influence your results, especially when leveraging insights from Power BI dashboards.
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Microsoft Fabric Community
community.fabric.microsoft.com โ€บ t5 โ€บ Desktop โ€บ replace-value-0-with-if-isblank-in-measure-with-DAX โ€บ td-p โ€บ 3172446
Solved: replace value 0, with if isblank in measure with D... - Microsoft Fabric Community
April 4, 2023 - hello how are you all? I present my problem, I have a measure that returns my last cost value, but sometimes it has not been purchased for a long time and that is why the value gives me empty and I would like if you can help me include the IF ISBLANK formula for solve my problem and put a unique key...
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SQLBI
sqlbi.com โ€บ articles โ€บ how-to-handle-blank-in-dax-measures
How to handle BLANK in DAX measures - SQLBI
August 17, 2020 - Net Amount % 3 := VAR DiscountPercentage = DIVIDE ( [Discount], [Amount] ) RETURN IF ( NOT ISBLANK ( DiscountPercentage ), 1 - DiscountPercentage )
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SPGuides
spguides.com โ€บ power-bi-dax-isblank-vs-isempty
ISBLANK vs ISEMPTY in Power BI DAX
January 7, 2026 - ISBLANK() is used in Power BI DAX to check whether a single value is blank or missing. It works with column values, measures, and DAX expressions that return one value. ISBLANK returns TRUE when the value is blank and FALSE when data exists.
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Medium
medium.com โ€บ microsoft-power-bi โ€บ isblank-vs-isempty-the-nothing-detection-duel-530f0e0eb9b0
ISBLANK vs ISEMPTY: The Nothing Detection Duel | by Bhanu Gautam | Power BI Masterclass | Medium
September 6, 2025 - Use ISBLANK for missing data in columns and calculated values, use ISEMPTY for filtered tables and relationship existence. This simple distinction prevents logical errors and ensures your conditional logic works correctly in all scenarios. Thanks for taking the time to read this article โ€” I hope it brought you one step closer to mastering DAX and Power BI!
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Microsoft Fabric Community
community.fabric.microsoft.com โ€บ t5 โ€บ Desktop โ€บ IF-ISBLANK-Return-Blank โ€บ m-p โ€บ 538585
Solved: IF ISBLANK Return Blank - Microsoft Fabric Community
October 10, 2018 - Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends August 31st. Request your voucher. ... Basically, if Date2 is blank then Age column should be blank because there is nothing to compare to. DaysBetweenDates = IF(ISBLANK([Date1),BLANK(),([Date2] - [Date1)*1.)
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Enterprise DNA
forum.enterprisedna.co โ€บ dax โ€บ dax showcase
DAX TIP: BLANK() vs ISBLANK() - DAX Showcase - Enterprise DNA Forum
August 28, 2021 - All, I was recently working with @The_Bishop on a set of complex conditional formatting measures, and ran into a situation where we were getting some very unexpected results that after substantial effort traced back to the difference in how the DAX BLANK vs. ISBLANK functions treat zeros and blank/null values.
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LinkedIn
linkedin.com โ€บ learning โ€บ advanced-power-bi-dax-language-formulas-and-calculations โ€บ blank-and-isblank-dax-functions
BLANK and ISBLANK DAX functions - Power BI Video Tutorial | LinkedIn Learning, formerly Lynda.com
Two of these functions are BLANK, which returns a measure result as a null value, and ISBLANK, which is a logical function that returns a Boolean result. In Power BI, let's explore how the BLANK function works.
Published ย  October 27, 2022
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SumProduct
sumproduct.com โ€บ blog โ€บ the-a-to-z-of-dax-functions-isblank
The A to Z of DAX Functions โ€“ ISBLANK โ€“ SumProduct
September 2, 2025 - The ISBLANK function is one of information function that checks whether a value is blank and returns a Boolean value of TRUE if value is blank otherwise FALSE. ... As an example, imagine you have a simple data like this in your Data Model with some blanks in the Denominator column.
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SQLBI
sqlbi.com โ€บ articles โ€บ blank-handling-in-dax
Handling BLANK in DAX - SQLBI
July 31, 2023 - When you use BLANK in a comparison, ... to blank requires a specific function, ISBLANK, which returns true whenever its only argument is a blank expression....
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Data Mozart
data-mozart.com โ€บ home โ€บ handling blank in power bi
Handling BLANK in Power BI - Data Mozart
July 26, 2021 - When you interact with the visuals in Power BI, every time query is being generated and sent to Analysis Services (Tabular) engine (Vertipaq), which runs in the background and doing the โ€œdirtyโ€ job. In the following picture, we can see how Vertipaq coped with this query: Now, we get to handling blank values in the visual. The first scenario is the most obvious and most used I guess. The measure which can solve blanks is as follows: Blank v1 comments = IF ( ISBLANK ( CALCULATE ( [Total Comments], FILTER (ALL(Comments[Year Comment]), Comments[Year Comment] = 2012 ) ) ), 0, [Total Comments] )
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Microsoft Power BI Community
community.powerbi.com โ€บ t5 โ€บ Desktop โ€บ calculated-column-with-Isblank โ€บ td-p โ€บ 1525360
calculated column with Isblank - Microsoft Power BI Community
December 3, 2020 - Not is blank = if(isblank([description]) , "No" ,"Yes") Microsoft Power BI Learning Resources, 2023 !! Learn Power BI - Full Course with Dec-2022, with Window, Index, Offset, 100+ Topics !! Did I answer your question? Mark my post as a solution! Appreciate your Kudos !!
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DAX Guide
dax.guide โ€บ blank
BLANK โ€“ DAX Guide
1 week ago - This article describes how to return BLANK instead of zero in a DAX measure. Using this technique, you can remove rows in a Power BI matrix visual where the result of a measure is zero.
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Towards Data Science
towardsdatascience.com โ€บ home โ€บ latest โ€บ why you should not replace blanks with 0 in power bi
Why You Should Not Replace Blanks with 0 in Power BI | Towards Data Science
August 15, 2025 - The thing that most resonated with me was when Jeffrey advised against replacing BLANKs with zeroes (or whatever explicit values) in Power BI calculations.
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Microsoft Learn
learn.microsoft.com โ€บ en-us โ€บ power-platform โ€บ power-fx โ€บ reference โ€บ function-isblank-isempty
Blank, Coalesce, IsBlank, and IsEmpty functions - Power Platform | Microsoft Learn
June 19, 2025 - The IsBlank function tests for a blank value or an empty string. The test includes empty strings to ease app creation since some data sources and controls use an empty string when there's no value present.