How to get a cleared document's information in enhancement((FIBF or GGB0))

I want to add a check that we can't clear a document when the currency is difference with the original FI document.

But I can't get the original FI document's information in open-FI(Business Transaction Events 1120) or other enhancements.

So how can I get the original FI document's in enhancements?

Thanks very much.

There is a document A.

I want to clear(for example, Tcode: F-44 ) the document A, and created the document B.

In enhancement, I can only get the information of document B, but can't get the infomation (for example. document type) of doucment A.

How can I get the information of document A?