Tracking record creation in BKPF with Change Document Object

Dear Experts,

I have requirement in which i need to track the entries that will be created or changed in BKPF table and copy that to another table.

I was able to find that the changes are recorded when using Change Pointers with change docuent object : BELEG

But i can't find any insertion records being created in CDHDR and CDPOS when a record is created.

Can anyone please guide me to track BKPF table insertion using change pointers.

Regards

Ninan