How to get the corresponding meter read/consumption for invoice document?

Hello,

i know the meter reads, which have been used for creating are invoice can be found within the billing document. I am however not so technical involved in such scenario and looking for somebody, who has explored the way how to get the specific piece of information?

There are various questions related to it

1) I only have the invoice ID, so how i need to access specific tables to find the information? Any ABAP example code very welcomed!

2) Is it possible, that you have a invoice document, but no more the related billing document?

3) Is there anything else, which could be problematic?

Thank you in advanced for sharing your experience!

Cheers,

Andreas