I'm here to help record a customer refund without affecting the inventory, @Dekorasyon Gifts.
You can create a credit memo without using the original item to refund your customer since you are not getting a Return Materials Authorizations (RMA) condition. To do so, you'll need to use an Other charge type item linked to an income account to track refunds and write-offs.
You can follow qbteachmt's suggestion in this related post to process a refund without affecting your inventory: https://quickbooks.intuit.com/learn-support/en-us/reports-and-accounting/how-to-record-damaged-goods....
Most importantly, I still recommend seeking help from your accountant. They may provide other ways to record this based on your business practices.
You can check out this article to learn how to manage credit or refund in QuickBooks Desktop: Give your customer a credit or refund in QuickBooks Desktop for Windows.
Don't hesitate to comment below if you need more help processing refunds for your customers. The Community team and I are always here to assist you.
