Activating the Enable account numbers feature in QuickBooks Online (QBO) does not directly affect the existing book journals, transaction numbers, or account balances, @Dilantha.
This feature only adds a method of organization while leaving your existing financial data intact. Past transactions will continue to reference account names, and account balances will remain unchanged.
Enabling account numbers can enhance clarity and ease of access. But you'll need to manually assign numbers to your existing accounts to utilize this feature.
In summary, activating account numbers does not impact the integrity of your books. It only provides a new way to reference and organize your Chart of Accounts without changing any financial figures.