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Power Automate - Building Flows
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Handling very large datasets (>1M records)

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Posted on by 11

Hi all,

 

Before I go much further down this thought process, I wanted to check whether the idea was feasible at all. Essentially, I have two datasets, each of which will consist of ~500K records. For the sake of discussion, we can assume they will be presented in CSV files for ingesting.

 

Basically, what I'll need to do, is take records from the first dataset, do a lookup against the second dataset, and then produce an output that essentially merges the two together and produces an output CSV file with the results. The expected number of records after the merge will be in the range of 1.5-2M records.

 

So, my questions are,

 

  1. Will Power Automate allow me to work with CSV datasets of those sizes?
  2. Will the "Apply to each" operator function across that large of a dataset?
  3. Will Power Automate allow me to produce the export CSV file with that size?
  4. Will the process actually complete, or will it eventually just hit some sort of internal timeout error?

I know that I can use more traditional services like SQL Server Integration Services for this, but I'm wondering whether Power Automate has matured enough to handle this level of ETL operation.

I have the same question (0)
  • Pstork1 Profile Picture
    68,319 Most Valuable Professional on at
    Re: Handling very large datasets (>1M records)

    Power Automate probably won't be a good choice for a dataset this large.  There are limits on Apply to Each Loops based on licensing.  It varies from a low of 5,000 items for a basic license, like the one in Office 365, to a high of 100,000 items for a full Power Apps or Power Automate license.  But that is far below the range that you are looking at.

  • D10ny5u532 Profile Picture
    53 on at
    Re: Handling very large datasets (>1M records)

    Did you end up developing a solution? Did you go ahead with PowerAutomate or use some other technology? Please name it if so.

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