CO object assignment

Hi All,

When I do asset retirement - ABAVN / ABAON, SAP will create the journal including the P&L account (such as gain/loss or disposal account)

The question is, the CO object for this account is always blank, cannot be derived from asset master data (cost center)

I've tried to use substitution but it's not working, please anyone could help me ?

Regards,

-M-