Hi Udo,
Thanks for your reply. When "SAP Standard" doesn't meet requirement, we need customization. It's easy to take hands out saying "this is SAP standard" but it's challenging to find a way out and better the solution. That will achieve, I believe, customer delight. So, I will be grateful if someone still can guide me to catch mapping runtime errors and trigger an email based on this event.
Regards,
Netrey