Thanks for keeping us posted, Jdch17.

The prompt you're getting is a reminder or warning of how adjustments accounts are taken into account. If you're sure that you'll use the Cost of Goods Sold account, you can click OK or the close ( X ) icon. Then, continue entering the adjustment. 

You can use the articles sent provided by my colleague for more information in adjusting your inventories. I'd also suggest reaching out to an accountant if you're unsure of what adjustment account you'll be using. 

The Community is always around if you need anything else. You take care!