I'm looking for a report that gives information related to sales billing, like billing document, sales group and sales office, but also with an input regarding the payment of the invoices.
I can see that information at 2 reports: "Sales Volume - flexible analysis" and "Manage Customer line items".
Is there a single report the all the information required?
I do not see a standard report but you could create a custom report to include this information.
I would recommend checking out this blog which outlines the process of creating a custom report using custom CDS Views - https://blogs.sap.com/2022/11/02/how-to-create-cds-view-report-in-rise-with-sap-public-cloud-2208/#:.
This is a relatively simple method to create your own reports within the limits of the CDS Views available.