We're unable to direct transfer or copy QuickBooks Online (QBO) company files between different QBO accounts, Jacob50.

When testing API integrations, it's important to avoid using your live production files. Using a separate test or dummy account can provide a safer way to validate functionality without affecting live operations.

Here are some options to consider:

Please create a new QBO test company in the other account manually and set it up with sample data. To do this, click the Free 30-day Trial button on this page: https://quickbooks.intuit.com/free-trial/.

Next, export data from the live company (e.g., lists and transactions) and then import it into the test company.

Please let me know in the comments if you require further assistance with this matter.