Welcome to Functional Team.
If you're facing account determination error while creating the billing document, it might be due to several reasons. So first select the line item in change billing document and go to Environment and select the Account Determination Analysis and then revenue Accounts.
Now you will go to new page and it shows about the analysis of all the condition types which you have maintained.
Please do double-click on all the condition types and update the screen shot or you can check with your SD Consultant.
If everything fine in the revenue accounts, then revert back.
Anandkumar KS