Hello qkbks_newbie,

Based on the error message you mentioned, the transfer transaction comes from the Online Banking. We can select Yes to delete the transfer transaction.

Aside from that, we can go to the Banking page and Undo it, too. Here's how to undo a matched, added, or transferred banking transaction:

1. Select Banking on the left menu and go to the Banking tab.
2. In the Banking page, highlight the connected credit card account.
3. Go to the Reviewed section and click Undo on the transfer transaction.

This process will remove the transfer transaction from your register. You might want to exclude the banking transaction to avoid duplicates in your register.

After that we can create a transfer transaction manually. This was also suggested by Ryan_M.

1. Click the + New button on the left menu and select Transfer.
2. Select the bank account in the Transfer Funds From field.
3. Select the credit card account in the Transfer Funds To field.
4. Enter the Transfer Amount and the Date.
5. Click Save and close.

This will serve as a payment for the credit card account. We can also create a check to record a credit card payment: Record credit card payments.

Screenshots were already provided by Ryan_M and can also be viewed through the related associated articles.

We'll get back to you if you require more assistance in navigating QuickBooks Online. Have a great day!