If you have used Bank & Cash > Draw Cheque for Cash to draw a cheque for cash and you entered the amount incorrectly, you cannot cancel the original transaction. Instead you must correct the original transaction, using one of the following processes.
If the original amount was too low
Use Bank & Cash > Draw Cheque for Cash to draw another cheque that makes up the difference.
If the original amount was too high
Pay the excess back into the bank.
Select Bank & Cash > Pay Income to Bank and enter a Paying in Slip to return the cash funds back to the bank.
Select Bank & Cash > Draw cheque for cash and enter the correct amount.
Note: When making these amending entries use cheque / paying-in slip numbers outside your current range e.g. 00001 if possible - try not to make it a larger number than the one you are using currently.