Locate rows with identical values in a column and email each of those rows in 1 email - google-sheets-api

Question

I am trying to write an Apps script for my google sheet.
Problem: I have data with the following column headings: Email; ID; Category; $Amount; Comment. There are multiple rows that have the same ID. I need all rows with the same ID to be sent in an email to the email address associated with that line.
So the email for example could (doesn't have to be) a table with the data enclosed
[sample email][2]
Can anyone help me with this?
Here is some code I wrote in Apps Script trying to do this on my own but it doesn't work:
var Send = "Y";
function sendEmails() {
//specify the sheet and definitions
var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Sheet1');
var lastrow = sheet.getLastRow();
var startrow = 1; // This is the 1st row of data to process
var numrows = lastrow; //This is the number of rows to process
//This section formats the colums so they appear correctly in the html email below
var column = sheet.getRange("A:A");
column.setNumberFormat("#"); //simple plain text format
var column = sheet.getRange("B:B");
column.setNumberFormat("#"); //simple plain text format
var column = sheet.getRange("D:D");
column.setNumberFormat("#"); //simple plain text format
var column = sheet.getRange("E:E");
column.setNumberFormat("#"); //simple plain text format
var column = sheet.getRange("H:H");
column.setNumberFormat("$0.00"); //simple currency format
var column = sheet.getRange("I:I");
column.setNumberFormat("#"); //simple plain text format
var column = sheet.getRange("J:J");
column.setNumberFormat("#"); //simple plain text format
//This section specifies the actual data we will be working with
var datarange = sheet.getRange(startrow, 1, lastrow, 15) // Fetch the range of cells
var data = datarange.getValues(); // Fetch values for each row in the Range.
//Defining the Column data
for (var i = 0; i < data.length; ++i) {
var col = data[i];
var Name = col[0]; //Column starting at 0 from left to right
var EmailAddress = col[1]; //Column starting at 0 from left to right
var Send = col[2]; //Column starting at 0 from left to right
var LeaseID = col[3]; //Column starting at 0 from left to right
var ExpenseCategory = col[4]; //Column starting at 0 from left to right
var TransactionDate = col[5]; //Column starting at 0 from left to right
var Type = col[6]; //Column starting at 0 from left to right
var Amount = col[7]; //Column starting at 0 from left to right
var PayeeName = col[8]; //Column starting at 0 from left to right
var Comment = col[9]; //Column starting at 0 from left to right
var EmailSent = col[10]; //Column starting at 0 from left to right
var Subject = "xxxxxxx June Payment Detail"; //Suject for the email to be sent
var emailintro = //Introduction part of the email
'Hi' + Name + ',<br /><br />' +
'In order to ensure proper account credit, please see the details from this months payment below: <br /><br />'
var emailtrans = 'List' + ExpenseCategory + Amount + Comment + '<br /><br />'
var emailend = // The end of the email
'Please let us know if you have any questions. You may reach us at xxxxx#xxxxx.com'
var me = Session.getActiveUser().getEmail();
var aliases = GmailApp.getAliases(); //Gets the alias xxxxxx#xxxx.com from account
Logger.log(aliases); //logs the alias
//This section is the one that actually sends the emails
//if (EmailAddress != "" && EmailSent !=""{
if (aliases.length > 0) { // Prevents sending duplicates
GmailApp.sendEmail(EmailAddress, subject, emailintro + emailtrans + emailend, {
'from': aliases[0],
'replyto': 'xxxxxx#xxxxxx.com',
htmlbody: emailintro + emailtrans + emailend
});
sheet.getrange(startrow + i, 392).setVaue(SENT);
SpreadsheetApp.flush(); //Make Sure the cell is updated right away in case the script is interrupted
}
}
}
//}}else {}}}