Thanks for reaching out to the Community space, @kimberlyellwood-. I'd be happy to answer your query.
If you've created an invoice in PayPal and it's attached to QuickBooks, then there's no need for you to create a receipt, as it'll result in to duplicate.
To know more about how PayPal works when synced in QuickBooks, I recommend checking these articles:
As always, you can visit our QuickBooks Community help website if you need tips and related articles in the future.
If you have additional questions or concerns, you can leave me a comment below. I’ll be happy to help you out.
