Thanks for giving that suggestion a try, Sibyl.

After reading your explanation, I would recommend changing the invoice back to the original amount that you paid. Then, include a note in the memo section about the price being reduced after you made your payment. Once that's completed, you will have a credit to be applied to a future purchase from this vendor.

It's always a good idea to discuss these types of actions with your accountant. If you don't currently have an accountant, you can find one in your area who is specifically trained in QuickBooks by searching here: Find a ProAdvisor

Please don't hesitate to reach back out if you have any other questions or concerns. Assistance is only a comment or post away.