HI,
What kind of notification is this ? if this is related to some SAP standard tcode e.g. IW21 etc, then let us know. check if SAP has provided any standard workflow for your requirement, if yes then copy and modify it otherwisre you need to create new workflow template.
is this just an email which needs to be sent ? if yes then dont go for workflow for sending an email.
Regards,
Ibrahim Ansari