How to identify if expenditures items and cost distribution lines is capitalized or CIP

Hi,

We are migrating project journals from R12 to Fusion. Part of requirement is to extract journals separately for capitalized, CIP, and expense. We understand that if item is billable then it can be capitalized or CIP. If not billable then it is expense. But how do we correctly identify transactions if capitalized or CIP? We use capital event ID in expenditure items table initially to determine capitalized vs CIP. If it is not empty then capitalized otherwise CIP. But it does not seem to be always the case.

Any advise is greatly appreciated.

Thanks

Aldwin