In one the customer requirement, on project ,employees time booked on saturday and sunday through CATS/ESS portal need to be captured and identified seperately as this is treated as a overtime. There is a seperate billing rate agreed with customer for saturday and sunday. For e.g; Per hour billing rate from Monday to friday is 150 USD. Whereas if an employee would work on saturday/sunday then per hour billing rate is 180 USD.
So, what can be a possible solution to identify employees time booked on saturday/sunday seperately, so that when running transaction DP91(RRB) system picks up respective billing rate maintained for saturday/sunday and raise a billing request.