Pickings/MO/SO/PO can be linked. Only the increased quantity is
propagated between documents. However their ordered quantities can
also be decrease or they can be cancel. In this case an activity
is created on impacted documents in order to describe the situation
and inform the user that a manual action is probably require.
Also in order to propagate the increased quantity from a MO, we have
to do important modification in MRP and we want to avoid doing it before a
major release. That's why increased quantity on a MO also work with
activity at the moment.
Arnold Moyaux
107b275a18