Hi Tiago,
Thanks for your reply. Thanks for explaning me the process of RRP run.
So unless I copy and create a new transaction or add in code into FM /SAPAPO/RRP_ORDER_SELECTION there seem to be no way for having times as selection criteria. But copying the trasaction is the last option I would consider.
Do you think it is possible to make any changes to BADI ' /SAPAPO/RRP_COLL_CONV' would help tweak in the time ?