How can i find what item failed executeQueryAsync add item method ?

this is my code :

var itemArray = [];
var siteUrl = "http://MySite/MM/cm";
var clientContext = SP.ClientContext.get_current();
var oList = clientContext.get_web().get_lists().getByTitle('xy');

var itemCreateInfo = new SP.ListItemCreationInformation();
oListItem = oList.addItem(itemCreateInfo);
oListItem.set_item('FullName', "ali");
oListItem.set_item('CellPhone', "555-666");

itemArray[i] = oListItem;

clientContext.executeQueryAsync(onQuerySucceeded, onQueryFailed);

function onQuerySucceeded() {
    console.log("item created in : ", oListItem.get_id());

function onQueryFailed(sender, args) {
    console.log('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());

I con not find out what item is duplicate in item creation that my query is failed ! if i can find it then i can update it and continue with others !

1 Answer 1


Pass the item you wanted to create, to the failed function with standard JavaScript bind
(supported in InternetExplorer since IE9)



clientContext.executeQueryAsync(onQuerySucceeded, onQueryFailed.bind(oListItem) );


function onQueryFailed(sender, args) {
    var oListItem = this;
    console.log('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());

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