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SharePoint - Determining if there is duplicate data in a particular field



I am stuck and would love your support!  I have not been able to find a solution for this request.


I have a SharePoint list with approximately 3000 records.  I have a text field called “FEIN” and a Yes/No field called “Duplicate Entry”


Here is what I am looking to do:


  1. Run a flow once a day
  2. Determine if more than one record has the same data in field “FEIN”
    1. Only consider records with “Duplicate Entry” as ‘false’
    2. Exclude empty/blank “FEIN”
  3. Send an email to involved parties with specifics (e.g. link to records, creators, etc.)
  4. (Close the loop) Update duplicate SharePoint items field “Duplicate Entry” as ‘true’ – to prevent future emails


Thank you in advance,


Community Support Team
Community Support Team

Re: SharePoint - Determining if there is duplicate data in a particular field

Hi @seanthomasadams,


It might be achieved by using SharePoint action Send an HTTP request to SharePoint.

The following doc on working with lists and list items with REST could be your reference:

Besides, here is a blog on working with the SharePoint Send HTTP Request flow action, hope it could be helpful:


Best regards,


Community Support Team _ Mabel Mao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Level: Powered On

Re: SharePoint - Determining if there is duplicate data in a particular field

Mabel, Thank you for your response. Unfortunately, my knowledge of REST API and JSON is limited. I am hoping someone would be willing to hold my hand through this. If someone could demonstrate the process, that would be incredible. Best, Sean

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