When you COMPLETE work order it is set to TECO by default and WO should automatically be removed from all devices.
However if you are not setting WO to TECO then you should configure a User Status and use Work Order Filters to Exclude Work Order by User Status. Now if you cannot configure a User Status you can configure use Mobile Status COMPLETED to remove the WO from all devices. Please set up appropriate filters on the WO MDO.
Alert or notification is not sent but WO is removed. If you want an alert you must configure a PUSH or configure a STEP in Transmit action to display popup message. You can use Timesheet error popup action as reference.
thanks
Chandra