It's nice to have you join us in the Community, @luke3.
Let me help share some information about creating month-end statement for a customer.
In creating a statement, we can only view the date, activity, the total amount of the invoice and balance due. Since the statement doesn't show the specific detail of an invoice, you can track this by opening a Transaction Detail report.
Creating a month-end statement that shows specific details of an invoice would be a nice add-on feature to QuickBooks. We'd love to hear your product suggestion by sending feedback directly to this link: http://feedback.qbo.intuit.com.
Please feel free to drop by again in the Community if you have additional questions about creating statements. I'm always here to help.