Integration of Telegram, WhatsApp into CRM Bitrix24

This is a web application based on ASP.NET Core that integrates with Bitrix24 to automate business processes through Telegram, WhatsApp, and GPT-Chat.

1. Integration of Telegram with Bitrix24

Uses Telegram Client API (TDLib) and REST API Bitrix24.
Automates messaging and synchronizes contacts.
Correspondence with the client in Telegram is automatically pulled into Bitrix24.

2. Integration of WhatsApp with Bitrix24

Implemented through a separate application on Node.js.
Correspondence is only available in CRM (not pulled in with the WhatsApp application).
Deletion and editing of messages is not supported.
Registration of the number in Bitrix24: after entering the number and selecting the open line, a QR code is generated for scanning.