Function Modules for creation of characteristics and Measurement Points

Hello everybody 😊

I'm new in ABAP (trainee) and especially the use of characteristics. I'd be very happy if somebody could help me :).

Can anybody out there with some experience in creating characteristics and measurement points tell me how to create them with function-modules or by changing database tables?

I'm happy about every hint and ready to give some reward points.

Best Regards,

Steffen