Hello there, @gnocchi.
I appreciate all the efforts you've performed to get this resolved. Allow me to chime in and share some ideas, so you can deposit the payment.
You can delete the other transaction that described as a Deposit from: Bank. This way, you'll not be prompted with an error message and you can deposit the amount. Just go to your bank register and delete the deposit from there.
- Go to the Banking menu.
- Select Use Register.
- From the Select Account drop-down, choose the account where the incorrect transactions were recorded.
- Click Ok.
- Locate the deposit transaction.
- Right-click on the deposit.
- Pick Delete Deposit.
- Click Ok to confirm.
For further details about deposits, you can also check this article: Deposit customer payments.
Moving forward, I'd suggest matching your transactions to avoid duplications in the register. For more details, check out this article: Add And Match Bank Feed Transactions In QuickBooks Desktop.
Let me also add this resource that you can use for future reference: Reconcile an account in QuickBooks Desktop. This link can guide you in ensuring that your accounts are well accounted for.
Tag me in if there's anything else you need help with on managing your accounts. I'd be more than happy to work with you. Keep safe and take care!
