Trello keeps track of everything, from the big picture to the minute details
Send a message to a public channel and customize the name and avatar of the bot that posts the message. See postMessage or scheduleMessage docs here
Send a message to a private channel and customize the name and avatar of the bot that posts the message. See postMessage or scheduleMessage docs here
Send a direct message to a single user. See postMessage or scheduleMessage docs here
Send a message using Slack's Block Kit UI framework to a channel, group or user. See postMessage or scheduleMessage docs here
Send a message as a threaded reply. See postMessage or scheduleMessage docs here