Enabling Slack Connect with Customers, Partners and Vendors
With the launch of Slack Connect, you can now have up to 20 organizations in a single Slack Channel and it's easy to enable! Just follow the steps below:
Step 1: Create the Channel

STEP 2: Send invites to all participating organizations

STEP 3: Wait for them to accept

STEP 4: Get admin approval

Once everyone is approved, you're all set to collaborate!