How can I change a deposit to an accounts receivable linked to an invoice?

Hello there, @mkessel65.

Let me guide you with the steps in changing deposit to an account receivable linked to invoice. 

Here's how: 

1.  Click the Gear icon, then select Chart of Accounts. 
2. Find the account you deposited the payment and click View register.
3. Find and select correct deposit, then Edit.
4. In the Add funds to this deposit section, find the deposit.
5. Under Received from dropdown, select customer from where the deposit came.
6. In the Account dropdown, select Accounts Receivables.
7. Once done click Save and close. 

In addition, you'll want to check this article to learn how to run basic reports in QuickBooks Online: Run reports in QuickBooks Online.

Feel free to respond to this thread should you need additional assistance in QuickBooks Online. Take care.