Improving the Bulk Processing Project in Google Apps Script

function sendCertificates() {
  const sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  const data = sheet.getDataRange().getValues(); // Get all data from the sheet
  const processColumnIndex = 5; // Assuming "Process?" is in column F (0-based index for column F is 5)
  const dateColumnIndex = 6; // Assuming "Date Sent" is in column G (index 6)

  for (let i = 1; i < data.length; i++) { // Skip header row
    const row = data[i];
    const processFlag = row[processColumnIndex];
    const dateSent = row[dateColumnIndex];

    // Check if the row should be processed and hasn't already been sent
    if (processFlag === 'Yes' && !dateSent) {
      // Send certificate (replace with actual logic for sending)
      sendCertificate(row);

      // Update the "Date Sent" column with the current date
      sheet.getRange(i + 1, dateColumnIndex + 1).setValue(new Date());

      // Optional: Mark the "Process?" column as "No" after processing
      sheet.getRange(i + 1, processColumnIndex + 1).setValue('No');
    }
  }
}

function sendCertificate(row) {
  // Replace this with the logic to generate and send the certificate
  Logger.log(`Sending certificate for ${row[0]}...`);
}