Hi Nitesh
Asset Doc Type AA has Business Transaction Variant 0000 i.e. it is not meant for splitting
That is because each asset is a sub ledger and transactions for 2 assets can never be clubbed
Most probably, your asset does not have CC or your settings in ACSET are not deriving KOSTL (Cost Center) for retirement transaction types
In ACSET, you should have * as trans type or atleast cover the required transaction types there
Br, Ajay M