Thank you for getting back to us, @clfp.

Thank you for the screenshots you've provided. These were very helpful for me to understand your concern further.

I'd love to provide some details about your transactions.

When importing from Sage, your old transactions were compressed into monthly fiscal adjustments.

This said, there's no need to delete the fiscal adjustments. They serve as a compressed record of all your previous transactions to correct your balances in QuickBooks.

Accounts such as Opening Balance and Retained Earnings are automatically created. These depends on the account you chose upon signing up.

You may also refer to this article for more information: Understand QuickBooks Chart of Accounts.

Please fill me in if you have any other concerns. I'll be around to help.