Stock posting to new material after UD

Hi experts,

i need an automatic stock posting to a new material depending on the usage decision code.

Code A -> post to Material A

Code B -> post to Material B

I know the possibility with that pop up where i can enter material etc. But i need it to be complete automatically.

If that is not possible, it would also be ok if the field in this popup would be already filled, so that the user only needs to press enter.

Any help would be really appreciated.

Best Regards

Daniel