tax book for secondary ledger with data conversion level 'journal'

Hi,

We have implemented R12 and created a secondary ledger with data conversion level 'journal'. The journals are created in AP, AR, PO and GL and then they are transferred from the primary ledger to the secondary ledger.

We are planning the implementation of FA. We want the FA journals of the FA corporate book to be transferred to the primary ledger and the FA journals of the tax book to be transferred to the secondary ledger.

When we try to create the tax book, we can't choose the secondary ledger. The only ledgers we can choose are the ledgers that were created with setup with secondary ledger data conversion level 'subledger'.