Can you create a credit memo from an overpayment from a customer? It shows an overpayment, but I need to print the credit memo.

Let me guide you on how to create and print a credit memo, @abainter-ancient.

You can delete the original payment transaction and then create a new one with the exact amount. After that, you can generate a credit memo to account for the remaining overpaid balance. Alternatively, you can print and send customer statements. This will allow them to view their credit balance.
 

If you'd like to delete the original payment transactions, let's try recording the receive payment with the exact amount from customer. 

Here's how:
 

1. Go to +New and select Receive payment.
2. From the customer dropdown, choose your customer.
3. Enter the Payment Date and Payment Method. 
4. Hit Save and close. 

Then, you can create a new credit memo for the remaining balance. Here's how:

1. Go to +New and select Credit memo. 
2. From the customer dropdown, choose your customer.
3. Select the Product and Service
4. Enter the overpaid amount to the Amount field. 
5. Hit Save and send.
6. Click the Print, if you wish to print your credit memo.
7. Click Send and close.

Learn more about handling your customer credit memo here: Handle a customer credit or overpayment in QuickBooks Online.

I'm adding these articles if you wish to refund and record your customer in the future:
 

• Void or refund customer payments in QBO.
• Record a customer refund in QBO. 

Let me know in the comment below if you have further questions about managing your customers' transactions. Keep safe! 

@abainter-ancient 

Obviously, @ShyMae 's advice will not work since you don't want to delete the payment received. 

This is another function that is lacking in QB Online that QB Desktop made so easy.  In QBO, the overpayment is sitting as a credit to A/R.  When you create a credit memo, it credits A/R just as your overpayment did.  So, we need to close out the overpayment that you received that is currently sitting as a credit to A/R and then create a credit memo.

The first thing to do is to create bank account in QBO called "Clearing Account".  Next, create a service product called "Customer Overpayment" and select the bank Clearing Account under the Income account drop-down menu.  Then, create a journal entry: debit A/R (select the customer's name under NAME) and credit the newly-created bank Clearing Account.  Now, go to Receive payment and select your customer.  You should see the journal entry and the overpayment from your customer.  Apply the overpayment to the journal entry.  Finally, create a credit memo and select the Customer Overpayment service item for the amount of the overpayment.  You now have a $2,000 credit memo for the customer that can be applied to a future invoice and the Clearing Account is zero.  

Did I mention how much easier this was in QB Desktop?