I am looking for a way to update a column of type "Person or Group" using HTTP Request of type REST.

Thank you.

1 Answer 1


Here is a Rest call sample to update person field in List named "MyList" and Person field named "Person1":

        // _spPageContextInfo.webAbsoluteUrl - will give absolute URL of the site where you are running the code.
        // You can replace this with other site URL where you want to apply the function
        url: _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getByTitle('MyList')/items(10)",
        type: "POST",        
            // Accept header: Specifies the format for response data from the server.
            "Accept": "application/json;odata=verbose",
            //Content-Type header: Specifies the format of the data that the client is sending to the server
            "Content-Type": "application/json;odata=verbose",
            // IF-MATCH header: Provides a way to verify that the object being changed has not been changed since it was last retrieved.
            // "IF-MATCH":"*", will overwrite any modification in the object, since it was last retrieved.
             "IF-MATCH": "*",
            //X-HTTP-Method:  The MERGE method updates only the properties of the entity , while the PUT method replaces the existing entity with a new one that you supply in the body of the POST
            "X-HTTP-Method": "MERGE",
            // X-RequestDigest header: When you send a POST request, it must include the form digest value in X-RequestDigest header
            "X-RequestDigest": $("#__REQUESTDIGEST").val()
         data: JSON.stringify({
              // Format of the "type" is: SP.Data.<<ListName>>ListItem. First character of the <<ListName>> should be in Capital
              type: "SP.Data.MyListListItem"
            Title: "Updated Title",
            Person1Id: 9 
        success: function(data, status, xhr) 
        error: function(xhr, status, error) 

Person1Id:9 is used to specify the user id which need to be set, you could find all the site users and users id with this request:

  • It is working, that's what i was missing, the use of UserId. I was trying to do it with the Claims or UPN, the flow works and successfully, but nothing updated in the list. but now with the userId everything is working. I appreciate it. Dec 4, 2019 at 9:53
  • 1
    Glad to hear that, you are welcome. :)
    – Jerry
    Dec 4, 2019 at 10:44

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