Getting IDs

To get an ID (or "snowflake"), right click the message, user, emoji, channel, role, or server you want to get the ID from. If you've already enabled the developer, there's a button "Copy ID" to copy the ID to your clipboard.

If there's no option to copy the ID, make sure you have the developer mode enabled. To do that, follow the tutorial by Discord.

If there's a respective command, you can also use it to get the ID, e.g. message id, user, emoji info, channel info, role info, and server.