Draft emails in Gmail from a Google spreadsheet and a Google doc template: https://katydecorah.com/code/google-sheets-to-gmail-template/

email-drafter.js

// What is the Google Document ID for your email template?
var googleDocId = "abcd0000abcd0000abcd0000abcd0000";
// Which column has the email address? Enter the column row header exactly.
var emailField = 'Email';
// What is the subject line?
var emailSubject = 'You\'re bringing {Type}!';
// Which column is the indicator for email drafted? Enter the column row header exactly.
var emailStatus = 'Date drafted';

/* ----------------------------------- */
// Be careful editing beyond this line //
/* ----------------------------------- */

var sheet = SpreadsheetApp.getActiveSheet(); // Use data from the active sheet

function draftMyEmails() {
  var emailTemplate = DocumentApp.openById(googleDocId).getText(); // Get your email template from Google Docs
  var data = getCols(2, sheet.getLastRow() - 1);
  var myVars = getCols(1, 1)[0];
  var draftedRow = myVars.indexOf(emailStatus) + 1;

  
  // Work through each data row in the spreadsheet
  data.forEach(function(row, index){
    // Build a configuration for each row
    var config = createConfig(myVars, row);    
    
    
    // Prevent from drafing duplicates and from drafting emails without a recipient
    if (config[emailStatus] === '' && config[emailField]) {  
      // Replace template variables with the receipient's data
      var emailBody = replaceTemplateVars(emailTemplate, config);
      // Replace template variables in subject line
      var emailSubjectUpdated = replaceTemplateVars(emailSubject, config); 
      
      // Create the email draft
      GmailApp.createDraft(
        config[emailField],   // Recipient
        emailSubjectUpdated,  // Subject
        emailBody             // Body
      );
      
      sheet.getRange(2 + index, draftedRow).setValue(new Date()); // Update the last column
      SpreadsheetApp.flush(); // Make sure the last cell is updated right away
    }
  });
}

function replaceTemplateVars(string, config) {
  return string.replace(/{[^{}]+}/g, function(key){
    return config[key.replace(/[{}]+/g, "")] || "";
  });
}

function createConfig(myVars, row) {
  return myVars.reduce(function(obj, myVar, index) {
    obj[myVar] = row[index];
    return obj;
  }, {});
}

function getCols(startRow, numRows) {
  var lastColumn = sheet.getLastColumn();      // Last column
  var dataRange = sheet.getRange(startRow, 1, numRows, lastColumn) // Fetch the data range of the active sheet
  return dataRange.getValues();            // Fetch values for each row in the range
}

katydecorah - Thanks for this script... Veeeery handy 👍 I tried to use the DOC as a html template (with url and image), but I had issue to use getBody() on the Document.. do you have any idae how to do it properly?

Hei! Same like priceotm. How to keep text formating. i have a template whith tables and pictures.

Is it possible to keep the images and original auto filled document instead of generating only text? Thank you for producing this! I'm missing something when i try to change that part. @katydecorah