SlackMessageCleaner

How to use

1. Create new App in here

2. Settings > OAuth & Permissions

   Scopes

   Bot Token Scopes:

   channels:history, chat:write

   User Token Scopes:

   channels:history, chat:write

   and get your "User OAuth Token"

3. Return this project, Input your "User OAuth Token" in .env

4. Input channel ID to delete messages in channels_info.csv