Value cannot be null. Parameter name: entitySet when insert item using REST API

Question

I am pass data like below. where Company name is Multi lookup Field.

{"Address":"","CompanyName":[{"ID":2,"Title":"InfoEngg"}],"Email":"[email protected]","Title":"Kapil","Mobileno":"9898989898","Password":"Sp@12345","EmpRole":"Level 1"}

Why this error throw?? how can i solve it?

Make sure you are passing value for all required column in REST API data(JSON) — Bharat Khunti
– Bharat Khunti, Commented Jan 22, 2018 at 15:33

Chris Romp · Accepted Answer · 2018-01-23 17:14:52Z

2

Try changing your CompanyName field to:

"CompanyNameId": {
    "__metadata": {
        "type": "Collection(Edm.Int32)"
    },
    "results": [ 2 ] // Array of the IDs of your selected items
}

Since per your comment your data format is set, why not just transform it before sending your update?

var data = {"Address":"","CompanyName":[{"ID":2,"Title":"InfoEngg"}],"Email":"[email protected]","Title":"Kapil","Mobileno":"9898989898","Password":"Sp@12345","EmpRole":"Level 1"};

var updateData = {
  Address: data.Address,
  CompanyNameId: {
    "__metadata": {
      "type": "Collection(Edm.Int32)"
    },
    "results": $.map(data.CompanyName, function(c) { return c.ID; })
  },
  Email: data.Email,
  Title: data.Title,
  Mobileno: data.Mobileno,
  Password: data.Password,
  EmpRole: data.EmpRole
};

edited Jan 23, 2018 at 17:14

answered Jan 22, 2018 at 21:04

Chris Romp

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i know this way but i have pojo class it contains all data for that lookup

Vishal Thakkar
– Vishal Thakkar

2018-01-23 05:52:12 +00:00
Commented Jan 23, 2018 at 5:52
1

Well, you asked why you're getting an error, and that's why. The service is expecting CompanyNameId and it's not there. :)

Chris Romp
– Chris Romp

2018-01-23 05:55:27 +00:00
Commented Jan 23, 2018 at 5:55

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