In pictures
Step by step
Open Community → Messages → Automatic reactions and add a rule.
Choose channels and emojis using the picker, including available server custom emojis.
Set the available filters and exceptions for affected messages, roles or authors.
Save, enable the rule and send a new message in the channel. Use Preview and test to check criteria.
Permissions and emoji availability
Spider must see the channel, access the necessary messages and add reactions. Replace custom emojis that are deleted or become inaccessible. External emoji permissions apply when required by Discord.
New messages and history
The module reacts to new messages matching rules. It should not be treated as a promise to process the entire existing message history. Review activity and errors for failures or restrictions.