Detailed description:
The "USER_CHANNELS_TOO_MUCH" error occurs during automated work with the Telegram API and is related to the limitations imposed on the number of channels and supergroups in which a user can be a member.
The reason for this error is that one of the users you are trying to invite to a channel or supergroup is already a member of too many such communities. Telegram sets certain limits on the number of channels and supergroups a single account can join, and exceeding this limit triggers the error.
This issue is particularly relevant when using automation to mass-invite users to channels or supergroups. Since Telegram strictly regulates the number of channels and supergroups a user can participate in, it's important to consider these limits.
Solution for "USER_CHANNELS_TOO_MUCH":
Step 1: Remove the user who is already a member of too many channels from your invitation list.
Step 2: If you still need to add this user, try contacting them and asking them to leave some of the channels or supergroups they're currently in to free up space for new invitations.
In most cases, this error occurs during bulk user invitations to channels, and it can be easily resolved by removing the overloaded user from the invite list. Following these steps will help you address the issue and continue automated work with the Telegram API without errors.