Hi there, milan_italy3-hot.

Thank you for visiting the QuickBooks Community. I'll ensure you'll get a statement in QuickBooks Online by performing the steps below.

Yes, you can get a customer statement of account in QuickBooks Online to show customers summaries of their invoices, payments, credits, and balances. Please know that there are three types of customer statements in QuickBooks; Balance Forward, Open Item, and Transaction Statements.

To start with, you'll have to go to the Customer's section and you'll be able to see the option to make a statement from there.

Here's how to create a customer statement:

1. Go to the Get paid & pay menu on the left panel. Then, select Customers (Take me there).
2. Choose the checkboxes for the customers you want to make statements for.
3. Select Create statements in the Batch actions dropdown arrow.
4. From the Statement Type dropdown list, select the customer statement type.
5. Choose the dates for the statements and the date range.
6. Double check the customer's email addresses.
7. Click Save and close or Save and send.

Once done, you can open this article to see steps on how you can view and customise customer statements: Create and send customer statements in QuickBooks Online. 

Lastly, you may refer to this article to view details on how you can add, edit, delete, or merge customers in QBO: Add and manage customers in QuickBooks Online.

If there's anything else that I can help you with managing customer statements within QuickBooks Online, don't hesitate to click the Reply button below. I'd be happy to assist you further, milan_italy3-hot. Wishing you the best.