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Dynamics 365 Community / Forums / Customer Service forum / RetrieveRecordChangeHi...
Customer Service forum

RetrieveRecordChangeHistory return Object reference not set to an instance of an object

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Posted on by Community Member 
When I am sending the request below, I keep getting Object reference not set to an instance of an object


https://***.api.crm4.dynamics.com/api/data/v9.0/RetrieveRecordChangeHistory(Target=@p1,PagingInfo=@tid)?@p1={'@odata.id':'incidents(002be138-e263-e811-a96a-000d3ab4cccd)'}&@tid={'Count':10,'PageNumber':1,'ReturnTotalRecordCount':true}
Authorization:Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6Im5iQ3dXMTF3M1hrQi14VWFYd0tSU0xqTUhHUSIsImtpZCI6Im5iQ3dXMTF3M1hrQi14VWFYd0tSU0xqTUhHUSJ9.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.DHMaJds_mzEfIYp03b-72IGgoxGrbQu7Dcjf9s_kd_XQjx2mn2uzria_EdTkW2Mltx32fBzzN4NJH41Ovm55wIKWT6iGMmACEeHsUb5j_ORY5orUpaBg0qEPjClAp37kN9tp9APfaw6_ju1FC8hYt2zliBqHr0E0GxJ8aPkI-1Xrpbk2zUrP5H5C3WiCkjDWrxgvADlkmvajo1Nq3Pvg86owPqWHy57t2s8wSjhmcTHTsCx1K63KatoRAMKiI2uKNeClZU6dnUHNw3x39m0fUvqJixI-vNi6mggZYyaXsfckQyPqCuNTx2BbQPVrs4yww43lVisXfb1T0DiQIAw3KA
Accept:application/json
OData-MaxVersion:4.0
OData-Version:4.0
Content-Type:application/json; charset=utf-8

Could any one please tell me what I am missing here?

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I have the same question (0)
  • Suggested answer
    LeoAlt Profile Picture
    LeoAlt 16,341 Moderator on at

    Hi partner,

    Looks like you had missed a parameter named "AttributeLogicalName".

    community23.png

    According to the C# samples provided by Microsoft, this field should be the name of field you want to search for.

    community23.png

    You could add the right parameter ang try again.

    Hope it helps.

    Best Regards

    Leo

  • Community Member Profile Picture
    Community Member on at

    Thanks for your answer.

    This parameter is required for RetrieveAttributeChangeHistory , but I am trying to use RetrieveRecordChangeHistory which requires only 2 params as per below Link:

    docs.microsoft.com/.../retrieverecordchangehistory

  • LeoAlt Profile Picture
    LeoAlt 16,341 Moderator on at

    Hi AWT,

    please try this code.

    function callwebapi
{
    var req = new XMLHttpRequest();
    req.setRequestHeader("OData-Version", "4.0");
    req.setRequestHeader("OData-MaxVersion", "4.0");
    req.open("GET", Xrm.Page.context.getClientUrl() + "/api/data/v9.0/" +
        "RetrieveRecordChangeHistory(Target=@p1,PagingInfo=@p2)?" +
        "@p1={'@odata.id':'" + EntityName + "(" + RecordId + ")'}&" +
        "@p2={'Count':10,'PageNumber':1,'ReturnTotalRecordCount':true}")

    req.onreadystatechange = function ()
    {
        if (this.readyState === 4)
        {            
            req.onreadystatechange = null;
            if (this.status === 200)
            {
                var results = JSON.parse(this.response);
            }
            else
            {
                Xrm.Utility.alertDialog(this.statusText);
            }
        }
    };    
    req.send(JSON.stringify({}));
}

    Hope it helps.

    Best Regards

    Leo

  • Community Member Profile Picture
    Community Member on at

    I am still getting the same error, I have checked with different entities (contacts .ex) and different record IDs but always getting the same response. Also, I make sure the record I am sending in the request has actual audit history log.

    7120.Capture.PNG

  • Community Member Profile Picture
    Community Member on at

    I have got the same error message. Is the problem resolved?

  • ALTOSHAAM Profile Picture
    ALTOSHAAM 180 on at

    Same error for the Dynamics 365 9.0.15 on-premise.

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