Preeti,
We don't have different profit centers for G/L e.g Salaries, or for Different cost centers e.g Sales, Marketing, Production and Finance.
for example, Sales is a cost center.
Now in this cost center, we do posting of Salaries, Rent, electricity charges etc..
The issue is we would want to distribute cost for the combination of G/L and Cost Center to different profit centers keeping cost center as same.