Automatic emailing of schedules and changes:
Your account is defaulted to automatically send all helpers an email when you Publish or Unpublish a schedule week. If the helper is scheduled that week, the notice will include a list of their shifts and any weekly helper schedule notes.
Your SETTINGS>Info page controls whether notices are sent when you publish a schedule week.
And, on the HELPERS>Notification Grid, you can see whether each helper is set to have their schedule forwarded to email or notice of publishing sent to their text address.
Tracking who was sent a schedule email:
After publishing, you can track who has been sent an email 
and who has confirmed receipt of that schedule email 
on the By Helper or Statistics schedule view.
Manually sending an Helper their schedule:
You can send an individual helper their schedule via email from their Helper Details page. Note that sending the schedule this way does NOT allow you to track their status icons on the By Helper schedule view.
Emailing Schedule Reminders:
You can send reminders from the Helpers List page to one or more helpers who are scheduled during a defined date range. Note that sending reminders does NOT update or affect the status icons on the By Helper schedule view.
When you send schedules manually this does NOT affect the status icons on the By Helper or Statistics schedule view. The status icons are only updated when helpers are notified when you publish or when you make a published schedule change.
resend the schedule to individual helpers