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Power Platform Community / Forums / Power Automate / How does Concurrency C...
Power Automate
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How does Concurrency Control work?

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I have built a workflow using Microsoft Power automate. This flow in parallel creates an approval, sends it to the employee, and waits for a response. I have set up concurrency control on 50 parallel requests. But I need to send approval requests for over 200 employees, how will the flow work? What happens starting with 51 employees? Does the 51st approval email only go out if the 1st approval email is approved/ rejected? Or does it go out if anyone responds?

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  • David_MA Profile Picture
    14,090 Super User 2026 Season 1 on at

    This video will explain concurrency control: https://youtu.be/QiA8k5Jh3Hs. It is covered in chapter five in the video. I have only done what you want to do where I expect a max of 10 approvals at one time. So far it has worked, but it has never reached the max yet. You may want to test with a lower limit and if you don't have any issues increase it a little bit at a time to see if you have issues.

  • sstewarta Profile Picture
    27 on at

    You will have better luck doing a child flow. Create a standard Manual trigger with inputs. In this flow create your approval logic. Then create a completely separate flow handling your 200 records to create approvals for. Within the second flows for each loop, you will use the action run a child flow. This will run the first flow with one record each, enabling you to run as many approvals as possible. Keep in mind that you're need these flows to be created in a solution. The run child flow will not see any flow that is not stored in a solution.

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