How can I cancel business transaction (expenses) in FBCJ, after posting it?

I printed cash journal yesterday, as usual, and today I realize, that a business tranzaction (expenses) is incorrect. I worked ahead, so the money has not been released yet. I can not delete it as you know now. What can I do? Please help me, it is ve...

Is it possible to fixing some fields for example in FB60 transaction? Sorry, I have hungarian SAP system, but for example can I fix invoice date for example? Because I have to book lots of similar invoices, and it can accelarate the process. Tha...