Add trigger via web screen painter:
POST_VALIDATE zattach_callback_event(call_back_date) 117 FILTER(call_back_date{} && active == 1 && type == 'R');
Create multiple notification macro and notification event.
copy attached zattach_callback_event.spl file In \site\mods\majic folder. Do not forget to change an event ID 'evt:400034' to your ID in the script:
Use on your own risk
Enjoy