Icon of channels organised by file folder

How to organise your Slack channels

Best practices for setting up your workspace’s channels

Channels are one of Slack’s core features and the best way to organise teams around a common goal.

Channels create clarity and visibility around roles and responsibilities, which helps to get work done faster and more efficiently. 

Here’s how to get started:

Add channels for teams, projects and functions

Before we get started, you have choices around how to start a conversation in Slack. You can:

  • Send a direct message to just one person
  • Create a group direct message with up to nine people
  • Create a public channel
  • Create a private channel

While there are situations for which private communication (via direct messages and private channels) is preferable, default to public channels so that anyone in your organisation can find the information that they need when searching for it in the future.

Slack ships with two default channels,#general and #random, so creating new channels is the first step to organising your work. That said, you don’t have to launch dozens of channels right away. Instead, add channels when there’s a real need. Those might include:

  • A channel just for one team’s conversations and updates, e.g. #team-marketing
  • A channel to kick off a new project with a cluster of people, e.g. #project-blog-redesign
  • Automated or machine-generated channels filled with data that are populated by apps and services that your company uses, e.g. #slack-twitter

Keeping track of channels and messages doesn’t have to be a chore.

Here’s a popular tip for anyone new to Slack: mark important messages with a star – it makes it easier to find them in your sidebar. You can also star channels or DMs to stay organised and on top of your work.

Keep work organised with channel naming conventions

When you add logical prefixes to channel names, such as #ldn-office, a channel’s purpose is clear to others. And when you use them extensively, it helps others to predict channels that they might need. For example, your teammates could create #ldn-sales to coordinate with the London-based sales team.

When creating channels for active projects, use names that start with the prefix #project-, like so: #project-new-website, #project-2019-conference and #project-alpha. These channels will be grouped together on your sidebar.

The same concept applies to channels such as #team-marketing, #team-sales and #team-design. In these channels, members can post status updates, share important calendar reminders and have general discussions related to their responsibilities.

For firms that mostly work with other companies, you might want to label channels with a prefix such as #client- or #accounts- and the name of the organisation that you’re working with, e.g. #client-a1-marketing or #accounts-megacorp.

Once you’ve agreed on how to name channels, share your guidelines widely by posting and pinning them to your main announcement channels.

To pin a message on desktop:

  1. Hover over the message that you’d like to pin.
  2. Click on the three dots icon.
  3. Select Pin to channel, or Pin to this conversation in a direct message

Pinning is perfect for so many situations, but let’s take that big kick-off meeting as an example. Pin the strategy deck to the relevant channel or channels. This way, if someone needs to refer back to the plan, it’s always right there.

Creating channels as your org grows

When a channel’s purview or membership grows considerably, group discussions might start overlapping and topics can become harder to follow. If you get to this point, consider adding more specific channels within a similar naming convention.

At Slack, we usually separate every project into at least three channels, each serving a different audience and discussion. For example, when we launched the newest Slack desktop app (called Sonic internally), the work was divided into #devel-sonic, #feedback-sonic and #gtm-sonic.

  • #devel-sonic was where developers shared and reviewed code and conducted tests of the latest app beta versions
  • In the #feedback-sonic channel, product managers discussed the features, functionality and design of the app, along with feedback from testers and employees
  • In #gtm-sonic, our marketing and PR teams coordinated the ‘go to market’ plan for collecting and iterating on assets leading up to the big day


How many channels is the right number of channels?

In a nutshell, it really depends on the size of your organisation.

When different teams throughout an organisation adopt Slack, it’s common to see up to two or three times as many channels as there are employees using the app. But if you keep channels highly targeted and organised, more channels in your Slack workspace doesn’t mean more work for everyone.

Even if you work at a large company with thousands of employees, you’ll do your best work in channels with as few as a dozen people.

When you set up multiple topic- and project-specific channels, groups can focus their discussions among smaller numbers of people, helping them to align and move faster. And having lots of specific channels means that each person can participate in fewer channels, because only a handful of them will be necessary for their daily work.

There’s a real danger in having too few channels on a large team. Let’s say you’ve got 500 people at a company using just 40 channels in total. Any one of those channels is likely to span many topics and projects that cross several functional groups, so specific information will be harder to track down. It’s better to add new channels around narrower topics to keep them tightly focused.

Organise your most important channels with sections

Choose a sidebar section in Slack. Some section suggestions are: Priority, Team, Announcements and Social

For Slack customers on paid teams, you can create sidebar sections to further organise your starred channels. You can adopt the suggested sections shown above or create your own to group your channels, DMs and apps, with the most important conversations at the top.

Your first section should be a section for your most vital work, and from there, you can customise according to your role. Sales people often create a section called ‘Accounts’ to contain any channels shared with customers. Software developers can create a section to house channels related to code check-in and reviews. Those in production roles can benefit from a ‘Projects’ section to track channels with their current day-to-day work. Sections are a great way to customise Slack specifically to your liking and tailor it more closely to your role.

Slack Connect: collaborate with outside organisations

Slack Connect allows you to connect your own Slack workspace to that of another company, such as an agency, a vendor or a freelance consultant. Work speeds along as both sides share mock-ups, drafts and final deliverables in their shared channel, skipping the need for email threads or phone calls. And both sides can add or remove team members as needed throughout the duration of a project.


When creating a shared channel within Slack Connect, you might include both company names (for example, #a1-marketing-beacon), but either side can set their own name for the same shared channel according to their distinct naming conventions. As with channel names, public and private settings for shared channels are independent, so they can be set as public on both sides, private on both sides or public on one side and private on the other.

Social channels provide real value

Aside from cross-functional teams working on projects together, some of the most popular channels are informal or social in nature, such as #music, #podcasts or #running.

Some might say that discussing non-work activities is counterproductive, but social channels allow employees to get to know each other better, share their knowledge and expertise and help to build a wider sense of camaraderie and cohesion on teams.

Optionally, you might want to set aside a prefix of #social- or #fun- in your naming conventions for these kinds of channels, to make the intentions of those spaces clear.

Channels bring it all together

With a bit of forethought and planning, channels help everyone in your organisation to track down what they need. And when everyone has access to the right people and information, the sky’s the limit.

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