Tracking the balance in your bank account is made simple with QuickBooks Online, especially if you've synced your account to the bank feed. I know how important it is to start your balance off properly, and I'd be happy to explain how you can change the beginning balance in your cash account.
If you should require additional assistance, I encourage you to contact our Customer Care team. With your consent, they'll be able to connect with you live, and ensure you're able to enter an opening balance successfully.
Schedule a Callback or start a Chat: click(?) in the upper right in QuickBooks Online > enter "Contact support" > choose Contact Us > provide a brief summary > select Let's Talk > choose Get a callbackor Start a Chat.