Hiyah good people!
Here is some useful information for you. 
Integrate your current card with the ESC to gain the benefits of a European dimension. By adding the ESC to your existing cards you can avoid the need to issue a new student card for mobility students if the home institution is also part of the ESC validate the student status from incoming mobility students securely
use your student card while studying abroad without needing to get a new student card from your host institution more easily access student services during your mobility experience
gain a “European student” status.
More information about the student card and app › European Student Card Initiative
Students The ESC is your gateway to on- and off- campus services by affirming your student status recognition at other universities around the EU.
Minna, OLS Community Manager – Finnish