How to Use Trello and Slack Easily 2026

Start at Trello's login screen and sign in with your work email, or use one of the single sign-on options underneath — Google, Microsoft, Apple, or Slack itself. Signing in with the Slack button is worth knowing about even if you don't use it here, since Atlassian (Trello's parent company) shares an account system across Trello, Jira, and Confluence, and the same login screen is the entry point for all of them. Once you're in, you'll land on your boards or your most recently viewed workspace.

Slack integrations in Trello are configured per Workspace, not per individual board, so the first real step is confirming which Workspace your project lives in. From the sidebar, expand Trello Workspace to see Boards, Members, Settings, and Billing — this is also where you'll end up if a teammate says Slack notifications aren't firing for a board that clearly has the Power-Up installed, since the fix is often a Workspace-level restriction rather than anything on the card itself.

Inside Workspace Settings, scroll to the permissions list and look for "Slack workspaces restrictions." This controls whether any member can link or unlink the Trello Workspace from a Slack workspace, or whether that's locked down to admins only. If you're setting this up for a team rather than just yourself, it's worth checking this setting first — it's the difference between the integration working the first time you try it and a confusing permissions error partway through.

Open the specific board you want to connect and find Power-Ups in the board menu. Search for Slack, add it, and you'll be prompted to sign in to the Slack workspace you want to receive updates — this is the step that actually creates the link, separate from the login-page SSO button and separate from the Workspace-level permission you just checked. Once authorized, pick the destination channel from a dropdown.

After the channel is selected, you'll see a list of triggers you can turn on individually: card moves between lists, new comments, due date changes, and member assignments among them. Turn on only what your team actually wants to see — a busy board pushing every comment into a shared channel gets muted fast, while a lean set of triggers (say, just moves into a "Done" list) tends to stay useful for months.

Once the Power-Up is live, you don't need to open Trello to interact with it. Typing /trello in a Slack message box brings up commands for creating a card, adding yourself to one, or joining a board directly from chat, and pasting a raw Trello card link into a channel will usually unfurl into a preview showing the card's title, list, and members. Run one test — move a card and watch for the notification in your channel — before you tell the rest of the team it's ready.