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A short description of the issue:

Previously, I was using Google Apps Script to populate the choices for a dropdown list on a weekly basis.  One question had as many as 3600 choices.  This week, when running the same script with a reduced number of choices (approx. 2000), I receive the following error:  "Failed to set choices.  You exceeded the maximum number of choices."  Is there a new limit?  I cannot find one listed.


A small code sample that reliably reproduces the issue. The sample should run as-is or with minimal setup, without external dependencies.

var sheetUrl = 'https://docs.google.com/spreadsheets/d/xxxxxxxxxxxxxxxxxxxxx/edit';
var sheet = SpreadsheetApp.openByUrl(sheetUrl).getSheetByName("Form Responses 1");
var data = sheet.getDataRange().getValues();

var formExample = FormApp.openById('xxxxxxxxxxxxxxxxxxxxxxxxxx');
var listOfCustomers= formExample.getItemById(1234567890);
var customerChoices = [];
for (var i = 0; i < data.length; i+=1){
    customerChoices.push(listOfCustomers.asListItem().createChoice(data[i][0]));
}
listOfCustomers.asListItem().setChoices(customerChoices);

What is the project key (found under "File > Project properties")? The project key does not give the Apps Script team access to your source code or data. We use it to look up debug information about your script.

MScNSGOUaQTSDnyXZC5B_d5YVeaX0aH1T

What steps will reproduce the problem?
1. Create a Google Form.
2. Create dropdown list question.
3. Get ID for that question.
4. Try to programatically add 2000-3000 choices for this question.

What is the expected output? What do you see instead?  If you see error messages, please provide them.

Expected output is a dropdown list with options.  Instead, I receive an error message when running the script from script.google.com: "Failed to set choices. You exceeded the maximum number of choices."  This is associated with last line of code: .setChoices(customerChoices).


Please provide any additional information below.