Any person in the system can be assigned a workflow process task. The assignee does not need access to the workflow or process to be given the task. In the case where they do not normally have access, they will be granted temporary access to the process to view the details of their assignment as well as provide the outcome. This will last until they finish their assignment.
Assignments are shown on the user's home page under the Pending Items area.
How to Bulk Update Your Assignment List
After opening your assignments from the user's home page under the Pending Items area. Select the blank square in the top left of the Assignment list
After you do so, another option will appear that will allow you to bulk "Update" those selected assignments.
The update information Pop up will appear in order for you to change the Statuses of the updated assignments.
Other Helpful Articles:
How do assignment tasks work? | One Church Software Help Center
How do I view progress across all workflow processes? | One Church Software Help Center