the issue might be in how the output is being parsed for Telegram. Just to confirm, are you using the /tool fetch method with http-method=post to send data to Telegram’s API?
@Monkey Mart Check how you’re capturing the ping result. In RouterOS scripting, use the :put [:ping 8.8.8.8 count=1] command to get the value. Then store the result in a variable and include it in your Telegram message. If it’s returning “ms” only, the script might be parsing the wrong part of the output.