Youtube Link :-
In a single project, there can be multi site where employees might be delployed. In this scenario employee's attendance will be uploaded site location wise. Hence, billing will also be done site wise.
Example :-
Suppose there is a single project 'Sodexo - Maharashtra'. This project can have multiple site location
Project :- Sodexo - Maharashtra
Site Location :- Mumbai
Nashik
Pune
billing will be done project wise. But on Invoice (Annexure), bifurcation will be done site location wise