For March, already we received 28 t

For March, already we received 28 timesheet. Today I am preparing the invoice summary for those. After that the invoice will be processed from Thailand. In the same we are communicating for rest of the timesheet of March. After submitting to ARIBA, sometimes it takes few days as supervisor may be out of office/of rotation or anything else. It needs approval from 4 different steps and that causes the delay.