Thanks for posting in the Community. I'm here to assist with reconciling the bank account.
When reconciling an account, you're comparing the beginning balance and transactions contained in your QuickBooks file with the monthly bank or credit statement to ensure they match. This is a great way of helping to make sure that your records in the software match those provided by the financial institution.
It appears that you haven't selected, whether you're using QuickBooks Desktop or QuickBooks Online. No worries, though, I'm providing information for both products that go over the reconcile process.