Video walk through
Converting an existing Slack channel into a universal channel
In a direct message with the Mio app, send "/mio create".
Select Existing Slack channel and find the channel you want to make a universal channel from the drop down menu.
Then click Create.
Congratulations! You have successfully converted your channel into a universal channel. To invite external and internal users, copy the link and share it.
Invite external contacts to chat in your universal channel.