Thank you for discussing the detailed information, @Chloecs.
Yes, there is Journal Entry (JE) that needs to perform in QuickBooks Desktop. So, there are no huge inaccuracies show up in the reports. But before doing this, it would still be best to consult with your accountant to help determine the appropriate accounts to use in creating JE. Also, to make sure what's best for you and your business.
Here's how to create a JE:
For the detailed steps, check out this article: Create a journal entry in QuickBooks Desktop for Windows or Mac.
You can always open the JE report to review all the entered debit and credits by going to the Reports menu at the top. Then choose Accountant & Taxes and pick Journal. Customize it to show the specific aspects. For more information about customizing, visit this article: Customize reports in QuickBooks Desktop.
I've also added a topic about managing inventory, products and services, purchase orders, and many more.
Let me know if you have any queries. I'm always here, glad to help.