Using HelpDesk+ in shared channels in Slack is a great way to support your customers.
Adding to shared channels
Navigate to the shared channel you want to use to support users
Type @helpdesk
Hit Enter
Click the button Add to Channel
Configure Request Types for shared channel
Locate the message Helpdesk+ has been added to this channel.
Click the Configure button.
Choose your ticket types - choose one or more request types or all types from one or more service desks.
Click Submit
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Using Organizations for grouping users
Go to the Organizations section and choose an organization for this customer.
Click Submit