I can help you in generating a sandbox test company file, Heidi.
To begin with, you'll need to set up and create a developer profile. Following the creation, you'll automatically get a sandbox company. Moreover, you can make up to 10 sandbox companies.
To produce a new one, please follow these steps:
- Log in to your developer account and go to the API Docs & Tools tab.
- Select Sandbox and click the + Add a sandbox company option.
- Choose QuickBooks Online Plus or QuickBooks Online Advance. If you've chosen QuickBooks Online Plus, picking your Country on the dropdown is a requirement. When created, the Country is unmodifiable.
- Once done, hit Add.
For complete details, kindly check this link: Create and test with a sandbox company.
I've also included this article that you can review to learn more about sandbox companies and how you can maximize them: Sandbox FAQ.
Should you have more queries about sandbox companies or need assistance with any QuickBooks features, just hit the Reply button. I'm one reply away.