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All the regular users who can access the workflow and start processing specimens will be notified of the count of specimens in the waiting queue via email if the "notifUserGroups" section is not configured in your workflow.json file.
Starting v10.0, if you configure the "notifUserGroups" section, the 'Workflow waiting queue items digest' emails will be only sent to the users that who are a part of that user group that is/are added to your workflow(s).
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