Originally Posted by
C-130
Doing each leg seperately for instance on a first itenary from GLA-LHR wont post a result as you get first TP etc but first isn' technically a bookable class domestically.
Not sure I understand what the problem is - you choose economy (lowest) or economy (flexible) to reflect the type of booking you'll be making. If the domestic leg is part of the fuller itinerary, find out the underlying booking code and map that back to the selection.