Removing Journal Vouchers 
SAP Business One saves journal vouchers as temporary files until a user posts them to the database. Until such a time, you can remove them, along with their recorded entries. Use this procedure to remove irrelevant journal vouchers.
Note
You can only remove one voucher at a time.
The journal voucher has the status Open.
From the SAP Business One Main Menu, choose .
The Journal Vouchers window appears.
In the upper table, select the voucher to remove.
From the menu bar, choose .
A confirmation message appears.
Choose the OK button.