# Mention Slack users from Attio with lookup tables

Source: https://neondeerdata.com/docs/videos/mention-slack-users/

Use an Attio workspace-member lookup table to find the right Slack user to mention. Map Slack IDs, look up the owner, and post a workflow message.

October 21, 20266:41 video

[Mention Slack users from Attio with lookup tables](https://www.youtube-nocookie.com/embed/7hA742FoeZM)

[Watch on YouTube](https://www.youtube.com/watch?v=7hA742FoeZM).

## What you'll learn

- Add Slack member IDs to a synced Attio workspace-member lookup table.
- Look up the current deal owner and get their Slack mention.
- Use the result in Attio's Slack message step.
- Handle members whose Slack details have not been added.

## Written guides

- [Slack mentions walkthrough](https://neondeerdata.com/docs/platform/automations/lookup-tables/#slack-mentions-video)

## More Automations videos

- [Install Advanced Workflow Automations in Attio](https://neondeerdata.com/docs/videos/install-automations/)
- [Schedule an Attio workflow for a Deal or Person](https://neondeerdata.com/docs/videos/scheduled-workflows/)
- [Build reusable Attio workflows with subflows and lookup tables](https://neondeerdata.com/docs/videos/lookup-tables-subflows/)

[Browse all video walkthroughs](https://neondeerdata.com/docs/videos/)