When creating simple Tasks from a Checklist, there is no need for the task user to have a license. 

The non-licensed user has all the standard Salesforce task  functionality. As the non-licensed user does not have access to the Checklist functionality, the following restrictions apply:

Task Processing

  • The standard product just maintains the Created and Last Updated information. We added the following fields for more accurate task tracking.  Without a license, these fields are not updated).
    • Actual Start Time  (when the task status was changed from Not Started)
    • Actual End Time (when the status was last changed to Completed)
    • Closed By (the user who actually last closed the task)
  • We added workflow capabilities to otherwise a flat last list (e.g. A -> B -> C -- where B is only started when A is completed).  When e.g. the user assigned to task A does not have a license and completes the task, status of task B remains at "Waiting on someone else".  So, the workflow is "stuck" and requires manual action.
  • Microtasks are a checklist within a checklist. In Lightning, you can just tick of all the items and the Task is then automatically completed.

Task Management

In addition to the standard Salesforce Task management and reporting, the licensed user can

  • Open Tasks provides comprehensive ad hoc query options to check task progress
  • The Task Managementlightning component allows to quickly check and manage
    • Only own Tasks (or all you have access to)
    • Only open Tasks (or all including closed or waiting)
    • Only tasks created by Checklist (or all tasks including manually created)
  • The Add Checklist lightning component lets you not just create new checklists, but also view progress and manage the tasks. The Task Table component is an alternative, if users should not be able to create new Checklist Tasks manually.
  • The Task Management, Task Table or Add Checklist component provide
    • one click Task complete/un-complete (toggle)
    • Microtask 

In summary, it is beneficial, if all users have a license.  The standard Salesforce licensing model does not allow to differentiate between Checklist Task creators and users.  Please contact us for a discount if you have a significant number of "just users".  We offer also site licenses to make user management easier.