How do I apply a credit memo to an invoice in QuickBooks Online

If you are a business owner or accountant using QuickBooks Online, you may need to apply a credit memo to an invoice in order to adjust the amount due on an invoice. This could be necessary if a customer has returned an item or if you have issued a refund for any other reason. Applying a credit memo to an invoice in QuickBooks Online is a simple process that can help you keep your books up to date and accurate.