To change these codes once transactions have been posted, you will need access to the Corrections Module in Dimensions (please see our article on switching on corrections )
Once you have this available, please use the following process to update your nominal code:
Click Financials, Accounts (ribbon menu) or Nominal Ledger, Records, Accounts (classic/module menu)
Load the incorrect nominal ledger account details into the Accounts window
Click Correct
Ensure the action is set to Change Code
In the New Code field, enter the new nominal account code
Once you are happy this is correct, click the Green tick icon.
Your nominal account and all associated records (such as posted transactions) will be updated with the new nominal code.
Repeat steps 2 to 7 for each nominal account you wish to change.