Add Amazon as a payment method in QuickBooks Online.
Payment methods will record how the customers paid you.
While this field is not mandatory, setting a payment method will allow you to run reports on payment methods. So if you have sales outside of Amazon, you can create different Payment methods, like PayPal, Cryptocurrency, or eBay. That way, you can run reports for each Payment Method.
You can save a different payment method for each marketplace through SellerZen if you later want to distinguish the Payments report by marketplace.
You can add any payment method through QuickBooks Online’s Gear icon on the top right corner of the homepage. Navigate to Gear icon > All Lists > Payment Methods.
Click on the “New” button and type “Amazon” without the quotes to add Amazon as a new payment method.