confirmation in PP has generated extra-accounting note

Hi everybody,

I don't know why when I make an confirmation in PP ( T-COD: CO1F ) the system generated an extra-accounting note in FI. I don't want to make this note in FI, because I have many confirmations and is generated many postings in financials.

Why are these notes generated?  Howcan Ichangethissetting?

Thanks,

Dorel