I've never had any accountancy training. But at one point zaomengshe.com needed financial reports, and I said "How hard can it be? I'll write some Python scripts." So the one thing I do know about accountancy, is that it is FUCKING HARD with financial partners who are incapable of attaching unique IDs to transactions. Which is all of them.
That's why, although I barely dare to say it, I kinda have some sympathy for Fujitsu here.