Did this one over an hour to notify me when certain cells change their value and their adjacent values.

Change your telegram bot token and Channel ID to make it work.

On the google sheets you want to edit add the following code and add a trigger for it that starts OnEdit function when the cell is edited and set it to notify immediately

// CREATE A TRIGGER WITH THE onEdit Function (click on the watch at the APPS SCRIPT EDITOR, go to TRIGGERS, select the event for WHEN EDITING and set for notify immediately

//Place this script on the worksheet scripts
function onEdit(e) {
  // Get the edited cell and its value
  var range = e.range;
  var row = range.getRow();
  var col = range.getColumn();
  var value = range.getValue();
  var previousValue = e.oldValue; // The previous value of the cell

  // Get the worksheet and the value of the cell next to the edited cell
  var sheet = range.getSheet();
  var adjacentCellValue = sheet.getRange(row, col + 1).getValue();
  var artistaLocal = sheet.getRange(row, col - 1).getValue();

  // Get the value of the SHOT NUMBER
  var cellValueAtB = sheet.getRange(row, 2).getValue(); // 2 is the column index for column B

  // Get the value of the ARTIST WORKING ON THE SHEET
  var artist = sheet.getRange(row, 7).getValue(); 

  // Get the value of the STAGE of the modification
  var stage = sheet.getRange(12, col).getValue(); // 6 is the row index for row 6

  // Get the value of the PROJECT
  var project = sheet.getRange(2, 3).getValue();

  // Get the value of the EPISODE
  var episode = sheet.getRange(3, 3).getValue();

  // Get the Shareable URL and GID to join them within the message body
  var thisDocumentUrl = SpreadsheetApp.getActiveSpreadsheet().getUrl();
  var thisDocumentGid = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().getSheetId()

  // Send a message through the Telegram bot

  var message = `<a href='${thisDocumentUrl}#gid=${thisDocumentGid}'><u>${project} | ${episode}</u></a>\n <b>${cellValueAtB} </b>\n <i>${stage} </i>\n pasó de <em>${previousValue}</em> a <b>${value}</b> \n por ${artistaLocal}.`;

  // Provide the Id of your Telegram group or channel
  const chatId = '-5954105';

  const BOT_TOKEN = '1986321029:AAF09NbQfA9wdCyLAHsjpoSC43ai0P0VEh4';

  const TELEGRAM_API = `https://api.telegram.org/bot${BOT_TOKEN}/sendMessage`;

  const text = encodeURIComponent(message);

  const url = `${TELEGRAM_API}?chat_id=${chatId}&text=${text}&parse_mode=HTML`;

  const response = UrlFetchApp.fetch(url, { muteHttpExceptions: true });

  const { ok, description } = JSON.parse(response);

    if (ok !== true) {
      Logger.log(`Error: ${description}`);

This code will run when you edit your google sheet and will send the message at the var message to your telegram channel.

Make sure to invite your bot to your channel and make it admin
You can follow more detailed instructions here: https://www.labnol.org/telegram-bot-notifications-210814