Good day, @RhondaL!
You can only enter up to 7 characters for your general ledger codes. I'm here to help you change them.
To start, here's how you can enable your account numbers if you haven't yet.
- Go to Edit.
- Select Preferences.
- Choose Accounting.
- Click Company Preferences.
- Check the option to Use account numbers.
- Hit OK.
This way, you can now be able to change your account numbers. Here's how:
- Go to Lists.
- Select Chart of Accounts.
- Find and click an account you wanted to modify the account numbers.
- Click Account.
- Select Edit Account.
- Enter your modified account numbers on the Number field.
- Click Save & Close.
Once done, you can now successfully modify your account numbers.
For your reference, I've included a couple of screenshots about the steps above.

If you haven't yet, here's how you can pull up your General Ledger report with the list of new modified account numbers.
- Go to Reports.
- Select Accountant &Taxes.
- Click General Ledger.
Feel free to leave a comment below if you have any other questions about QuickBooks Desktop. It'll be always my pleasure to lend you a helping hand.