Booking material/stock in order of field entries to be changed:

When booking in material if the site is not the first thing changed (eg to Wellingborough) and the quantity received and batch numbers are entered, although Sage allows you then to change the site, when you save Sage deletes all details entered and the process has to be done in the specific order of site, quantity and batch. Is there an easy fix so that the order does not matter, i.e. you can enter reference at any time of the transaction(although logically it is the very first thing you do).