Hello there, @Nicebouy.
I'm here to help so your transactions are posted to the right account in QuickBooks. To ensure an error doesn't impact your account balances or reports, you either void or remove any transactions you unintentionally create in QuickBooks Online.
Here's how you can safely remove the transaction:
1. Go to the Gear icon and select Chart of accounts.
2. Find the account you want to review. Then, in the Action column, select View register.
3. Select the affected transaction and change the affected income account to the correct account.
In addition, learn how to find transactions in your account registers so you can review or edit them.
Let us know in the comment below if you need further assistance with managing your banking transactions. I'm sure to get back to provide assistance.