How to set the value of [Lookup] in c#

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i am facing difficulty in setting the value of the Lookup in CRM using c#

i am using below code

public string CreateContact()
{
HttpClient httpClient = apiRequest.ConnectToCRM();

JObject contact1 = new JObject { { "firstname", "Peter" }, { "lastname", "Parker" }, { "annualincome", 90000 }, { "emailaddress1", "peter.parker@gmail.com" },{ "customertypecode",3} };

//Option2
contact1["jobtitle"] = "Business Analyst";
/* contact1["parentcustomerid"] = Convert.ToString(id);*//*new EntityReference("account", guid);*/
WebApiRequestStatus createStatue = apiRequest.CreateRecord(httpClient, contact1, "contacts");
return createStatue == WebApiRequestStatus.RecordCreated ? "Record has been created successfully" : "Failed to create a record. Please check the portallog table for more information";
}

please help me out how to fix it.

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Rawish Kumar 13,758 on at

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Hi Shashikant,

please try below :

contact1["parentcustomerid@odata.bind"] = "/accounts(Id)";

Id in string.

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Community Member on at

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thanks for your reply but i have already tried it and its not working except its showing following error message:

System.NullReferenceException: 'Object reference not set to an instance of an object.

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Mansoor Sulaiman 4,330 on at

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Hi,

Please try as below.

contact["parentcustomerid_account@odata.bind"] = "/accounts(81780845-8930-E611-9457-00155D189801)";

Mansoor

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Community Member on at

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Thanks a lot Mansoor its working now

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