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Update multiple Excel rows with the same key in Power Automate

Posted on September 4, 2022September 4, 2022 by Tom

“I’m trying to update multiple rows in an Excel file with Power Automate, but it keeps overwriting the data on the first row!”


Using Power Automate to update rows in an Excel file has a small downside – there’s no unique id to identify the rows. Unlike in SharePoint, where you select the row id, in Excel you use the Key Column and Key Value combination. A column the flow should search in, and the value it should search for. The first row containing the value is the one that the flow will update.

Which can be a problem if the table contains duplicate values. The flow will never move to the 2nd or 3rd row, it’ll keep updating the first one from the top.

Power Automate Excel update multiple rows

Unless you use a small workaround.

Add a new column to the Excel file

To update a specific row you’ll always need the column – value combination. The only way to move to the next row would be to modify the value in the currently processed row, and let the flow find the next one. But it’s not always possible to change the value as you need the information. For this reason you’ll need another column with the same information, whose modification won’t matter.

Once you have this column you can use it in the ‘Update a row’ action. Find the row with the value, update the other columns, and change the value. Just keep in mind that the value must be unique, e.g. a date and time.

Once the value is updated, the flow will automatically select the next row for the next update.

Summary

When building a flow, you should always consider not only the flow itself, but also the data it works with. If Power Automate doesn’t allow you to update multiple Excel rows with the same value, you can just add another column as a workaround. It’ll find the row with the value duplicate, update it, and change the value. That way it’ll never find the same row, always updating the next one.


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2 thoughts on “Update multiple Excel rows with the same key in Power Automate”

  1. Felipe Gil says:
    January 19, 2023 at 6:23 pm

    Hii have a question.

    I am finding the way to update multiple excel rows that have the same id; because as you show on the solution of this question:

    https://tomriha.com/update-multiple-excel-rows-with-the-same-key-in-power-automate/#:~:text=If%20Power%20Automate%20doesn%E2%80%99t%20allow%20you%20to%20update,the%20same%20row%2C%20always%20updating%20the%20next%20one.

    The function only update the first row with the key id; but in my program i want to update all the rows that have that key id.

    Thank you for your blog it is very helpful and if you can help me with this question; it would be awesome.

    Reply
    1. Tom says:
      January 26, 2023 at 3:10 pm

      Hello Felipe,
      that’s why you need an extra column whose value you can change and base the flow on this new column – once you change the key value it’ll pick the next row and update it. It’s not possible to do it if you have only 1 column.

      Reply

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Hello and welcome!

My name is Tom and I'm a business process automation consultant and Microsoft MVP living in the Czech Republic. I’ve been working with Microsoft technologies for almost 10 years, currently using mainly Power Automate, SharePoint, Teams, and the other M365 tools.

I believe that everyone can automate part of their work with the Power Automate platform. You can achieve a lot by "clicking" the flows in the designer, but you can achieve much more if you add a bit of coding knowledge. And that's what this blog is about.

To make the step from no-code Power Automate flows to low-code flows: using basic coding knowledge to build more complex yet more efficient flows to automate more of your daily tasks.

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