I'm trying to update a field using CSOM. It works for few items but when i try t on items over 700 items i'm getting the error below:-

"The request message is too big. The server does not allow messages larger than 2097152 bytes"

Is this normal as these items are small? See the code below. How can i turn the code below to update in batches?

  function updateListItems() {

    // Create an instance of the current context to return context information
    clientContext = new SP.ClientContext.get_current();
    var oList = clientContext.get_web().get_lists().getByTitle('Test');

    var camlQuery = new SP.CamlQuery();
    this.collListItem = oList.getItems(camlQuery);   

    clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));


function onQuerySucceeded() {

    var listItemEnumerator = collListItem.getEnumerator();
    while (listItemEnumerator.moveNext()) 
        var item = listItemEnumerator.get_current(); 
        item.set_item("TestUnit", "TestUnit");
        //Commits changed properties of the list item


    clientContext.executeQueryAsync(Function.createDelegate(this, this.onUpdateSucceeded), Function.createDelegate(this, this.onQueryFailed));


Thanks in Advance


You can use Batch Update Items from List:

function updateListItems() {

var itemArray = [];
var clientContext = SP.ClientContext.get_current();
var oList = clientContext.get_web().get_lists().getByTitle('TestList');

for(var i = 1; i<= 5; i++){

    var oListItem = oList.getItemById(i);  
    oListItem.set_item('Title', 'My Updated Item!' + i);  
    itemArray[i] = oListItem;

clientContext.executeQueryAsync(onQuerySucceeded, onQueryFailed);

function onQuerySucceeded() {

alert('Items Updated');

function onQueryFailed(sender, args) {

alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());


Reference from

  • Thanks Sunil for your response.But the issue is if the item id that is being passed to getitemid doesn't exist it fails. – naijacoder Oct 10 '18 at 11:22
  • How can this be achieved in batches of 50 or 100 or 500 using the script? – naijacoder Oct 10 '18 at 21:56
  • for batch only you need iterate clientContext.load and after all items you need to clientContext.executeQueryAsync. check if(itemid) prior getting into the iteration – Sunil Sahu Oct 11 '18 at 10:11
  • Thanks Sunil can you please be more specific .Maybe with a snippet code – naijacoder Oct 12 '18 at 0:15
  • Hi Sunil, Any update on this? – naijacoder Nov 23 '18 at 6:12

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