How to change batch classification characteristics?

Hello expterts,

i must develope a programm, which changes characteristics of a batch.

Example:

For material 12345678 we have a batch 9898989898 with class z_batch_class.

This class has serveras characteristics: z_cust_lfsnr

I have to change this charateristic via program. Is there an other possibility than using call transaction MSC2N ?

I am searchin for a FM ode a Bapi.

Can anybody help me?

Thank you