Permissibility of ones wife going away on training for 3 months

Assalamoalaikum Mufti Sahab
My wife had just completed her education and secured a job in a very good company. But she is required to stay away from home for 3 months as she has to undergo a training session. I would like to know if it is permissible to send her for such training wherein she is required to stay away from family.
Jazakallah Khair