Help with MobileFitting App Code to configure Signia Run SP

I have bought a Signia RUN SP hear aid device for my mother in law, but when installing the MobileFitting App, it requires a code to configure the device with my audiometry.
I do not know how to reach this code. Can anyone help me to configure it or borrow his code just only once to make it usable.

Thank you very much for your help.

Regards,

Oliver

Also cant seem to find the needed code.