Thank you for reaching out to the QuickBooks Community. It sounds like you're dealing with a complex situation where a transfer receipt was cancelled by the customer, but the goods have already been delivered. However, I need your confirmation if I have understand your case properly,
From what I understand, here is the situation:
Transfer Receipt Cancelled by Customer: The customer cancelled a payment transfer they had initiated.
Goods Already Delivered: Despite the cancellation, the goods involved in the transaction have already been delivered to the customer.
Handling the Discrepancy in QuickBooks Online: You need to accurately reflect this in your QuickBooks Online records.
If you had recorded a payment received from the customer in QuickBooks Online but the payment was actually cancelled, you need to reverse this entry to correct your records. Locate the payment transaction and void or delete it. Since the products were delivered despite the payment being cancelled, you need to ensure that the delivery is reflected accurately in your books.