EN:

i made sure the user sent a message to the bot and i made sure the username is correct still when the user makes an appointment the bot doesnt send a message..

I apologise in advance for not providing code. I will try to add it tomorrow but I’m not near it right now and thinking about how to solve this is keeping me up.

I am intending to host my bot – built using python-telegram-bot – on a server. I was wondering if multiple users are interacting with my bot, will their requests be queued, or processed concurrently? And if so, do I need to do anything to the code on my end to ensure that they’ll be processed concurrently?

i write this code:
import sqlite3
from typing import Final
from telegram import Update
from telegram.ext import Updater, CommandHandler, MessageHandler, filters, ContextTypes, CallbackContext, ChatMemberHandler

I am completely new to python and trying to let my bot send a picture to a supergroup every day at the same time.

I am completely new to python and trying to let my bot send a picture to a supergroup every day at the same time.