A password is required as a security measure to protect your financial data and prevent unauthorized changes, Kimberly.
This situation usually occurs when a closing date is set up in your QuickBooks Online (QBO) account.
A closing date serves as a safeguard, ensuring that only authorized users can make significant modifications after a certain date. This helps you maintain accurate accounts.
For your reference, here's an article about closing the books in QBO: Close your books.
If you wish to edit those transactions, I recommend reaching out to your accountant to avoid any negative impacts on your financial records.
Also, you might want to consult with our QuickBooks Live Expert Assisted team for tips on how to keep your records accurate within the program.
Please feel free to revisit this thread if you have any additional questions.