User database in a Telegram bot is a repository of information about users who interact with your bot. This database contains information such as user IDs, their first names, last names, usernames, as well as other data that may be useful for working with the bot.The user database can be used to store and track information about each user, for example, to personalize the interaction experience with the bot or to send notifications and messages to specific users.
Depending on your bot’s implementation, the user database may be created and managed by the bot itself or by an external service integrated with the bot.
You can export your project users' IDs from the "Users" tab by clicking the "Export Telegram ID" button.