This process is not recommended as it will change the General Ledger without changing the subledger. The correct procedure is to reverse the document within the subledger or enter a new General Journal.
However sometimes this process is suitable if you need to correct entries in a batch and the effect on the subledger is immaterial, especially in the case where figures are posted to wrong accounts.
In order to complete the below steps, you will need to identify the batch and the lines to be corrected.
To edit entries in a Journal:
Choose Transactions, General Ledger, Other Modules, Journals from Other Modules.
Enter the Period Number, original batch number.
Choose Accept (F9).
In the Transaction Header, enter the transaction number in Number.
Go to Account Code, override with the correct Account Code.
Choose Accept (F9).
Repeat steps 4 to 6 if there are more entries to fix.