> ## Documentation Index > Fetch the complete documentation index at: https://docs.eluu.ai/llms.txt > Use this file to discover all available pages before exploring further. # Channel restrictions > Pin a colleague to specific Slack channels with allow lists, keep them out of sensitive channels with block lists, or let them answer everywhere. By default, your colleague can answer in any channel they've been added to. That's usually too much. Channel restrictions let you say exactly where a colleague should and shouldn't respond. ## Three modes Pick one per colleague: **Allow everywhere.** The colleague answers in any channel they've been invited to. Default for new connections. Good for general-purpose colleagues like `@Eluu`. **Allow list.** The colleague only answers in channels you've explicitly listed. Use this when you want a colleague pinned to specific channels — Sofia in `#sales-ops` and `#sales-leadership`, nowhere else. **Block list.** The colleague answers everywhere except channels you've explicitly listed. Use this when most channels are fine, but a few are off-limits — say, executive channels or channels with sensitive HR discussions. ## Setting it up In Eluu's Slack settings, open the connection you want to restrict. There's a **Channels** section. * Pick the mode (Allow / Allow list / Block list). * Add channels to the list (you'll see your team's channels in the picker, public and private). * Save. The change takes effect immediately. Existing threads continue, but new mentions in disallowed channels are ignored. ## Mapping vs allow list — what's the difference A channel **mapping** says "in this channel, the bot should respond as Sofia". An **allow list** says "Sofia can respond in these channels — and only these." For `@Eluu` (the platform bot), you set up channel mappings so the right colleague answers in each channel. The allow list adds a layer on top: even with a mapping, the bot won't respond if the channel isn't allowed. For custom Slack apps (where the colleague has their own `@name`), there's only one colleague behind the app. The allow list is the main control. ## Private channels Private channels work the same as public ones — pick them in the picker, add them to the list. A workspace member needs to invite the colleague to the channel before it can respond there, regardless of allow-list state. ## Where to next Link Slack users to Eluu accounts. Run colleagues under their own brand.