Customizing cell format/script when sending emails from Gsheets?

Question

Does anyone know how to customize the format of an email body in a script or within the cell formula when sending an email from google sheets?

The first attachment is the incorrect email body the script is sending .

And the second attachment is the correct email body format I need the script to send .

Code below:

// has been sent successfully.
var EMAIL_SENT = 'EMAIL_SENT';

/**
 * Sends non-duplicate emails with data from the current spreadsheet.
 */
function sendEmails2() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var startRow = 2; // First row of data to process
  var numRows = 1000; // Number of rows to process
  // Fetch the range of cells A2:D1000
  var dataRange = sheet.getRange(startRow, 1, numRows, 1000);
  // Fetch values for each row in the Range.
  var data = dataRange.getValues();
  for (var i = 0; i < data.length; ++i) {
    var row = data[i];
    var emailAddress = row[0]; // First column
    var subject = row[3]; // Second column
    var message = row[3]; // Third column
    var emailSent = row[3]; // Fourth column
    if (emailSent !== EMAIL_SENT) { // Prevents sending duplicates
      MailApp.sendEmail(emailAddress, subject, message);
      sheet.getRange(startRow + i, 4).setValue(EMAIL_SENT);
      // Make sure the cell is updated right away in case the script is interrupted
      SpreadsheetApp.flush();
    }
  }
}

Answer 1

Issue:

When plain text is added to the email body, a line break is added after ~78 characters, as you can see, for example, here: Gmail API - plaintext word wrapping.

To avoid this, you should add an HTML body instead of plain text, using MailApp.sendEmail(recipient, subject, body, options).

Also, you need to add HTML line breaks (<br>) if you want to maintain the line breaks from the cell value (\n). You can use String.prototype.replace() for that.

Solution:

Replace this:

MailApp.sendEmail(emailAddress, subject, message);

For this:

MailApp.sendEmail(emailAddress, subject, "", {
  htmlBody: message.replace(/\n/g,'<br>')
});

Reference:

• Gmail API - plaintext word wrapping
• MailApp.sendEmail(recipient, subject, body, options)
• String.prototype.replace()