A pending shift can be caused when a shift is awaiting staff confirmation.
If the assigned care-worker has not provided confirmation for the shift assigned to them then the following will occur:
The shift will be sent to into a pending state
The assigned care-worker will be highlighted orange
Staff Confirmation Required
This enables staff to confirm their attendance when they have been assigned a shift. If you donot require confirmation to staff then simply leave this checkbox unticked (as showed in screenshot below)