Workflow Actions is a single place to manage all the pending actions you can take on Workflows.
Workflow Actions will send email notifications only if the 'Send Email Alert' checkbox is ticked in the Workflow that you've created.
To access Workflow Actions, go to:
Home > Settings > Workflow Actions
If a User is eligible to take action on some workflows, emails will be sent to the user with the relevant document as attachment. From there the user can
Reject the Workflow.
Also the users will see entries in their Workflow Action list: