Problem in FBCJ business object BUS2023

Dear Experts,

I have a requirement, I need to trigger a workflow when a document is saved in FBCJ transaction.

For this I am using business object ZBUS2023 by delegating BO BUS2023. In this I created one custom event and triggering workflow from an enhancement.

I am trying to check my custom methods by creating BO instance in SWO1 and I am passing key fields company code, CashJournal Number, FiscalYear and  CashJournalDocNo. But it is saying object doesn't exist even though entry is there in data base.

Please help on this.....

Thanks

Chaitanya M