Welcome back here in QuickBooks Community. I'll ensure you're able to fix the DD payroll check that's already been posted to the n chart of accounts
Payroll checks that have already been processed or posted in the chart of accounts can no longer be edited. What you can do to fix this is to create a Journal Entry (JE) in QuickBooks Online (QBO) to transfer the amounts to the correct account. Before doing so, I also recommend consulting an accountant for additional guidance in posting the amounts to the correct accounts so your QuickBooks stays accurate.
Go to the + New button to get to the Journal Entry.
Once done, you can follow the steps provided by my colleague above on how to change the payroll account to the correct one. This way, the paycheck will come out to the right account. For additional information, you can refer to this article: Payroll accounting preferences.
Please open this article to see different payroll reports you can use to view useful information about your business and employees: Run payroll reports.
Please get back to me if I can be of additional assistance while working in QuickBooks. I'd be glad to help you out. Have a good one!