Microsoft flow union function. Let us create a new flow.

Microsoft flow union function. So how do we fix this? The answer is using the union function in Examples with code snippets and screenshots on how to use the Power Automate Join function and the Join action. Mar 11, 2025 · When working with data in Power Automate, you often need to combine, filter, or compare lists dynamically. This reference guide applies to both Azure Logic Apps and Power Automate, but exists in the Azure Logic Apps documentation. Expression function - first () Expression function - intersection () Expression function - union () Expression function - empty () Expression function - contains () Expression function Jun 20, 2025 · The Concatenate function concatenates a mix of individual strings and a single-column table of strings. , manually trigger a flow). This week we'll explore Microsoft's Power Automate Function "join" and give you tips and tricks on how to use it efficiently. Your own spreadsheet with the tables described later in this tutorial. Streamline workflows and automate tasks effortlessly with Microsoft Power Automate. -> Is there a difference between UNION-Function and Power Query Append queries and Power Query -> Merge queries -> inner join, if both tables have the same number of columns, same headers, same position in their tables? -> Which is better performance-wise? Automate workflows and business processes across apps, systems, and websites with Microsoft Power Automate using AI, digital, and robotic process automation. Let’s break down how each works with basic examples. Dec 18, 2024 · Microsoft Fabric’s Data Factory experience provides an intuitive and user-friendly interface using Power Query Online that can help you streamline your data transformation workflows when authoring Dataflow Gen2. Function Descriptio… Aug 12, 2024 · This article describes union operator. join([insert output from the compose action above]) Note: You can combine the last two compose actions together if you'd like. You can specify a table as an argument for a function, and functions In this video, I go through the expression union in Power Automate. Feb 13, 2025 · Expression functions list In Data Factory and Synapse pipelines, use the expression language of the mapping data flow feature to configure data transformations. The result of the two tables should be something similar to "group by" function bases on both tables. The result table's columns are the union of all the columns from all the argument records and tables. This expression returns all the common items in two arrays. To format text, dates, and numbers, you can just provide examples of the output format that you want the flow to Aug 21, 2020 · See common entities between two collections or objects within Power Automate with the Intersection function in Power Automate! Apr 27, 2016 · If Microsoft Flow sounds familiar, that’s because back in November we announced a private preview of the Logic Flows feature of Microsoft PowerApps. If there are two objects with the same name in the final output, the last object with that name appears in the final object. Nov 22, 2024 · Set Operators - UNION (Transact-SQL)<query_specification> | ( <query_expression> ) Is a query specification or query expression that returns data to be combined with the data from another query specification or query expression. Here are the main types: Functions take parameters, perform an operation, and return a value. Let us create a new flow. Ugh. Jan 7, 2024 · If the expression is "union (variables ('array variable 1'),variables ('array variable 2'),variables ('array variable 3'))", the result is [100,200,300,400,500,600,0,700]. I would like to present on a same graphic the CAPEX spend vs the budget each month. To add a new condition, click on the plus icon in an existing row. When I add table 3, I get the message "Each table argument of 'UNION' must have the same number of The union() function will combine the two arrays getting rid of any duplicates in the process. Use the data flow expression builder to enter an expression for the split condition. . Like ask is as below: Input1= [1,2,3] Input2= [1,4,5] Output= [1,2,3,1,4,5] Note: the union function would only take the unique records but here the need is to have all values (which includes similar values) An evergrowing Power Automate Function Reference with suggestions, best practices, things to avoid, and limitations Apr 4, 2020 · If you want to find all the distinct records in your data-source like a SharePoint list, there is no “Distinct records” action or distinct expression that you can use in Power Automate (earlier called Microsoft Flow) . Sep 24, 2024 · UNION Function not working as expected ‎ 09-24-2024 02:50 AM I have three tables in need to combine into one. The screenshots in this article use the new designer, but the steps are similar in both designers. They have the same # of columns, same columns names, data types etc. The union scope will not include functions. A default stream can be added as well for rows that don't match any condition. For example, the following denotes that the Mar 20, 2021 · Efficient Union, Except And Intersect – Great Method Imagine you have two datasets that you want to compare where you would like to include or exclude common or uncommon rows from each? Out of the box, the Power Automate platform allows you to compare datasets with the Union and Intersect expressions. You focus on the code that matters most to you, in the most We would like to show you a description here but the site won’t allow us. Be sure to check out the links in the sidebar, be respectful, and let's all go with the Flow! Examples with code snippets and screenshots on how to use the Power Automate Intersection function. Compose – Convert to String If necessary, use the join () function to convert the array back to a string. The provided value is of type 'Null'. Guide on using a intersection expression in a flow. Blog: https://www. To include a function, define a let statement with the view keyword. Apr 24, 2024 · The "Union" transformation requires that all the streams have the same number of columns and the same data types. A table is a value in Power Apps, just like a string or a number. The column names in the return table will match the column names in table_expression1. In this example, I will be using an Excel file to demonstrate this. This causes Power Automate to think we’re merging two arrays (even though it’s the same array!) and removes the duplicates. And if you are interested in working with us at Microsoft, head over to aka. There is a simple way to do it using the union expression . In these scenarios, Union function in Power Automate can be used. When data types In this video, we will learn How To Use Union Function In Power Automate. The definitions of the columns that are part of a UNION operation don't have to be the same, but they must be compatible through implicit conversion. Duplicate rows are retained. This is your first post. Functions are similar to Microsoft Excel functions. When I join table 1 & 2, using UNION, it works with no issues. This function works to combine multiple Collections or Objects together into a single Collection Mar 25, 2025 · Azure Functions is a serverless solution that allows you to build robust apps while using less code, and with less infrastructure and lower costs. For example, If my array looks like the below: [1,2,1,3,1,4,2,5,2 Jul 10, 2018 · A post about all the amazing stuff you can do with arrays and collections in Power Automate. Formulas in canvas apps combine several elements. Mar 13, 2023 · Hi everyone, I looking for help to union 2 tables, it starts to get over my head. CRMONCE is a leading Microsoft Dynamics 365 and Power Platform consulting company. For example the following function Aug 22, 2025 · Expressions in Power Automate is a powerful way to perform operations over data. Apr 25, 2024 · The two tables must have the same number of columns. If you work with Arrays in flow then this post is what you need! Power Automate Overview Power Automate is an online workflow service that automates actions across the most common apps and services. For example, Sqrt (25) returns 5. May 2, 2017 · Makes a union of S1 and S2, with the Src column tagging which set a row came from. We specialize in CRM implementation, Power Apps development, Power Automate, and business transformation solutions. For example: InvalidTemplate. Return a collection containing all elements present in any of the specified collections. Sep 15, 2025 · Learn about pipelines in Microsoft Fabric Data Factory, including activities, triggers, control flow, and how to use them for data processing workflows. Microsoft Power Automate helps create automated workflows, streamlining tasks and enhancing productivity for apps and services. Or Kindle Unlimited (unlimited reading). How To Use The Coalesce Function In Power Automate Let’s create step-by-step a Microsoft flow that demonstrates the Power Automate coalesce function. This service helps you create automated workflows between your favorite apps and services to synchronize files, get notifications, collect data, and more. But which method should you use? Jun 19, 2025 · This article explains all the functions you can use in canvas apps. Get expert consulting, training, and support for your Microsoft technology needs. Feb 13, 2025 · Combine data from two data sources using the join transformation in a mapping data flow in Azure Data Factory or Synapse Analytics Jan 27, 2023 · Is there any way in ADF to merge 2 Array variables without the use of any iteration activity. Add a Compose action and use the Int function to convert the string to an integer: Feb 3, 2022 · Introduction: In Power Platform, at times we must combine couple of Arrays or objects. Scenario: While working on Product development, I need to get unique values from an array to remove duplicates presented in an array using the Power Automate flow. When you use this function with individual strings, it's equivalent to using the & operator. Columns are combined by position in their respective tables. Learn more (with examples) in Identify differences between In Power Platform, at times we must combine couple of Arrays or objects. For those who want to learn Power Automate Cloud flow effectively The information on this site is now available in an easy-to-read e-book format. For example, if the first column of each table_expression has lineage to the same base column C1 in the model, the Sep 8, 2024 · You can remove the duplicates from a Power Automate array in two easy steps: add a Compose action and insert a Union function. So, if we you use the union expression for an array May 1, 2018 · In this post, I will discuss all the String functions that can be used in Microsoft Flow. This video demonstrates the Intersect and Union function in Microsoft Power Automate⭐IntersectionReturns collection that has common items across mentioned co Aug 28, 2020 · Want to learn how to merge multiple collections or objects into a single collection or object within Power Automate? Then check out this video to learn the Power Automate Union function in under 3 minutes! If you’re looking to learn more about Power Automate functions you can use then check this blog post list out: Power Automate Functions Alternatively if you’re looking for more videos CRMONCE is a leading Microsoft Dynamics 365 and Power Platform consulting company. Mar 15, 2025 · Comprehensive reference guide for Power Automate and Logic Apps expressions. The Power Automate home page offers you various options for creating your own flows and learning about the key features for We would like to show you a description here but the site won’t allow us. Let’s create an array variable with name FirstArray, as shown in Jun 30, 2025 · To use the data operations described in this article, you need to have the designer open with your new or existing cloud flow. Mar 10, 2025 · Learn about the parameters and output data types for mathematical features in Power Automate Process Mining. Learn about details of usage and functionality for all expression functions in mapping data flow. Microsoft 365 Outlook (While we use Outlook in this tutorial, you can use any supported email service in your flows. Be sure to save your spreadsheet in a location such as Dropbox or Microsoft OneDrive so that Power Automate can access it. The flow will use an expression function called Union to get the unique values. Mar 24, 2024 · concat('Case-',formatNumber(item(),'0000')) When we run the flow the Select action outputs an array containing the case id and name just as the other methods using Apply To Each did. There's no guarantee of the order in which the union legs will appear, but if each leg has an order by operator, then each leg will be sorted. For example, you could use Apply to each to update records from a database or list of items from Microsoft SharePoint. Apr 6, 2022 · In this video, I talk about nine essential expression functions for collection and string operation that you should know and use in your power automate flow. ms/DesignCareers. They are an essential part of most Flows. As an example, Names String Array and Vehicles String Array were used to explain this behaviour. Unable to process template language expressions. Instead of worrying about deploying and maintaining servers, you can use the cloud infrastructure to provide all the up-to-date resources needed to keep your applications running. Feb 2, 2021 · I have the flow which getting two set of data from two table and I want to merge two into a single array. This then leaves us with a final, duplicate free array, from the output of the compose action. Runtime errors occur if you don't handle null fields correctly. Jun 27, 2025 · Here's what you need to complete this tutorial. . However, Microsoft Flow is useful for any business user, whether or not they want to build a PowerApp. Arrays are the collection type within Power Automate. Edit or delete it, then start writing! Nov 9, 2023 · Are you in need of getting unique values from an array using flow? Then, this Power Automate tutorial will help you get unique values from an array in Power Automate. Previously i have used Summary = DISTINCT(UNION(VALUES('Tab The Union function in Power Automate is used to r eturn a collection that contains all the items from the specified collections/arrays. Note The union scope can include let statements if attributed with the view keyword. I have this first table with my budget per month: Projetct name Business / IT CAPEX Date Amount ($) Project #1 Business CAPEX JANU Apr 1, 2025 · To do this, your flow can be started on a schedule (such as once per day) and use a loop action such as Apply to each to process a list of items. We Jul 11, 2025 · Learn how to use data operations in Power Automate to efficiently manipulate, transform, and manage data in your cloud flows. Union function in Power Automate In this exercise, we will learn how to use the union function of power automate. Aug 2, 2024 · Transformation expression function list The following articles provide details about expressions and functions supported by Azure Data Factory and Azure Synapse Analytics in mapping data flows. UNION Function What is the UNION function? UNION FUNCTION returns all the values in an array. In this article, I’ll introduce you to the union function and will provide a step-by-step guide on how to use the function in a Microsoft flow. The problem was that the email address list provided contained lots of duplicate email addresses, which meant some recipients received duplicate Calendar Invites. the uniqunes is based on Material & Period combination. Jan 26, 2023 · Re: How to return an empty array within an if function so union function won't complain @Billy_C @VictorIvanidze brought up a good point about the possibility of the To field being blank if they only used CC. This video explains the usage of some basic Microsoft Power Automate Flow Expressions Expressions covered : Split Length First Empty Union Join Real time usages of the above expressions are Feb 16, 2025 · The Split on setting determines whether the row of data flows to the first matching stream or every stream it matches to. Jun 19, 2025 · The Table function creates a table from an argument list of records or tables. Access to Power Automate. Jan 28, 2025 · Columns are combined by position in their respective tables. in this video you will learn How To Use Union Function In Power Automate . When I add table 3, I get the message "Each table argument of 'UNION' must have the same number of Aug 23, 2025 · Welcome to WordPress. Or it will return all the values within two arrays. This article explains how basic and advanced operations on arrays within a Power Automate Flow are implemented. more May 22, 2025 · This comprehensive guide will demonstrate how to leverage union() to efficiently remove duplicate items from your datasets, with a particular focus on inventory management scenarios. Jan 9, 2025 · Union will combine multiple data streams into one, with the SQL Union of those streams as the new output from the Union transformation. Mar 20, 2020 · In my The advanced Pieter's method in Power Automate post, I received a comment asking about joins when using json arrays. Jan 9, 2020 · Hi I have two tables and i am trying to make a summary table using "New Table". Aug 27, 2024 · When you create a flow in Power Automate, you might experience the following issues: Unexpected behaviors occur when performing an action with a null field. These include special keywords to address array elements and indexes: #acc represents a value that you wish to include in your single output when reducing an array #index represents the current array index, along with array index numbers #index2, #index3 #item represents the current element value in the array A place to discuss, share, and problem solve all things Microsoft Power Automate formerly Microsoft Flow related. The union, except, and intersect functions help you achieve that efficiently. e. office365notes. Sep 3, 2025 · The Power Fx formula reference information is organized in the following way: Each Power Platform component is listed as a filter article in the table of contents that you can use to find a list of all the available formulas for the component. All of the schema from each input stream will be combined inside of your data flow, without needing to have a join key. You can use Power Automate to automate workflows between your favorite applications and services, sync files, get notifications, collect data, and much more. Add the Initialize variable action and Name the variable “varString,” set the type to String, and add the Value as 24: 3. Jul 17, 2020 · union function And that’s it you will be able to select unique items from your Array. As an example, Names String Array and Vehicl… Oct 1, 2025 · To stay in the know with Microsoft Design, follow us on Twitter and Instagram, or join our Windows or Office Insider program. This video is a step-by-step tutorial on how to get Unique or Distinct values from Array in Power Automate flows. Dec 17, 2020 · We can simply use a Compose action and the Union function. Learn how to quickly create automated workflows between your favorite apps and services to synchronize files, get notifications, collect data, and more. The union function is used to combine the two arrays and returns the distinct values only in the resultant array by removing the duplicates. To reference or process the values in these expressions, you can use expression functions provided by the Workflow Definition Language. ) Apr 19, 2025 · Reference information for functions, signals, and enumerations in desktop flows. You can use the Format data by examples feature to access these expressions without knowing the different functions and corresponding syntax that is needed to create the expressions that you want. Power Automate is a powerful automation and integration tool with over 280+ data connecto Microsoft Power Automate documentation Discover how to make the most of Power Automate with online training courses, docs, and videos covering product capabilities and how-to articles. To create a new flow follow the following instructions: Go to power Apps: Conclusions Getting the unique values is a commonly requested task in Power Automate, but there is no action or function specifically for this. For left hand side, I get all row which Item Type equal to Book, it will return all Book data, same goes to right hand side. Jun 3, 2020 · This blog will be looking at an expression called union () This expression can be used to remove duplicates from 2 collections. This article provides information about expressions and functions that you can use in creating Azure Data Factory and Azure Synapse Analytics pipeline entities. Both of them have one common primary key which is Item Type. Hope this helps! Let me know in the comments if you have any questions. Power Automate allows you to use either the new designer or the classic designer to configure your cloud flow. Some functions can have side effects, like SubmitForm, which you use only in a behavior formula Sep 11, 2025 · Learn about the functions that can be used in a Bicep file to retrieve values, work with strings and numerics, and retrieve deployment information. Feb 3, 2022 · The parameters for the function can either be a set of objects or a set of arrays (not a mixture thereof). com/ Union Function in Power Automate#shorts #m365 #powerautomate #100days100shorts #office365notes #microsoft #flow Sep 24, 2024 · UNION Function not working as expected ‎ 09-24-2024 02:50 AM I have three tables in need to combine into one. Oct 28, 2024 · 1. Essential formulas for workflow automation, JSON operations, date handling, and more. If you’re a developer with a background in Azure Data Factory's Mapping Data Flows, you find this guide helpful in mapping your existing Mapping Data Flow transformations to the A while back, I was using PowerAutomate to automate the creation of individual, personalised Calendar Invites to users based on a set of email addresses. The sub areas are listed under the Applies to area at the beginning of each formula reference article. Comparing Append To An Array Methods Performance Now we know 3 methods we can use to append to an array in Power Automate. You willl discover how to about basic A cheat sheet with 140+ Power Automate functions, links to the official documentation and an easy to follow visual guide. The union function will remove duplicates and can be used to get unique values by taking the union of an array with itself. This article applies to mapping data flows. This article provides information about expressions and functions that you can use in creating pipeline entities for Data Factory in Microsoft Fabric. So, we can use the union function to get the unique values from the array. We would like to show you a description here but the site won’t allow us. Aug 21, 2020 · Welcome to Function Friday. A blank value is added to any column for which a record doesn't include a value. As the name implies, the functions covered in this post only apply to String data type. Use this function to summarize the strings of a table, just as the Sep 16, 2025 · Learn how to create and join parallel branches of workflow actions and how parallel branches behave in Azure Logic Apps. f you need to perform any additional transformations on the merged data, you can use the "Derived Column" or other transformations in ADF Dataflows. While using the Union function we pass the same array into it twice. 适用于： Azure 逻辑应用（消耗型 + 标准型） 对于 Azure 逻辑应用 和 Power Automate 中的工作流定义，某些 表达式 获取的值来自运行时操作，而这些运行时操作在工作流开始运行时可能尚不存在。 To reference or process the values in these expressions, you can use expression functions provided by the Workflow Definition Language. The Concat function concatenates the result of a formula applied across all the records of a table, resulting in a single string. Mar 31, 2025 · Array functions perform transformations on data structures that are arrays. Jan 5, 2024 · Data flows are available in both Azure Data Factory pipelines and Azure Synapse Analytics pipelines. Go to Power Automate, click the Instant Cloud flow, enter the Flow name, and choose the trigger flow (i. The returned table has lineage where possible. Hope you find this useful! This is a video to show you how to use the Union function within Power Automate (and Logic Apps!). The RankTop operation groups duplicates into separate groups by using the GROUP BY clause, orders each group by Src and Rank, and then picks up the first one. 2. The following articles provide details about aggregate functions supported by Azure Data Factory and Azure Synapse Analytics in mapping data Jul 11, 2025 · Power Automate allows you to optimize your business processes across your organization and automate repetitive tasks. I want combine both array into single array for each row return from both table, I tried union but it We would like to show you a description here but the site won’t allow us. Description: In this guide, we will discuss how to use the float function in power automation. If you're new to transformations, refer to the introductory article Transform data using mapping data flows.