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Power Platform Community / Forums / Power Automate / Remove duplicates base...
Power Automate
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Remove duplicates based on matching key

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Posted on by jdlindsey 18

Hello! I have the following select statement: 

jdlindsey_0-1713981817386.png

where the substring is substring(item()?['Name'],6,10)

 

This will produce an array where I will have an unknown number of duplicate invoice values. How do I filter out the duplicate invoices (and their IDs)?

 

Thank you!

Categories:
Building flows
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  • David_MA Profile Picture
    David_MA 14,090 Super User 2026 Season 1 on at

    I believe this YouTube video covers what you are asking: https://youtu.be/R_bD8nAoJ8Y?si=bIG_7w1cXbg2jh0-

     

    This is the description of the video: Learn how to merge or join multiple arrays super quick with no apply to each. Using string techniques we can rebuild an array to form an object and access data directly using a primary key value. I will demonstrate the speed of the solution on three arrays containing 5,000 records, joining them one to many and one to one to form a new array in under 10 seconds.

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