SCC concentrates on the costs connected to the supply chain as
described above.However,in practice,this cost can be estimated
in different ways and with different degrees of accuracy.Rough
standard allocations can be used to cover,for example,transpor-
tation costs,order-processing costs,etc.Actual costs can be
reported directly to a customer order or a customer project.The
latter is naturally preferable in order to arrive at an accurate SCC
to be used as a basis for good decisions.Butevenforthemost
accurate SCC a mixture of standard costs,from the companies’
budgets and cost accounting systems,and actual costs is neces-
sary. Some cost drivers must distribute indirect costs.Therefore
measuring an accurate SCC can be difficult.Onereasonforthe
difficulties in measuring SCC is that companies’accounting
systems are not adjusted to SCC measurements.Accordingto
Christopher (1998), conventional accounting systems group costs
into broad aggregated categories which do not allow the detailed
analysis needed to identify the true costs of servicing customers.
Christopher (1998) describes two principles for logistics costing
that are also applicable for SCC: