Page 19 - Logistics News June 2016
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inventory management

    The bottom line is that       between the A, B and C and         in a profitable return on
inventory is expensive and it     at the same time evaluate the      that investment. With good
typically comprises 40% to        demand frequency to more           inventory policies in place,
50% of a manufacturing or         intelligently manage order         a better understanding of
distribution organisation’s       cycles and order quantities.       real customer demand and
capital investment. The cost is   This strategy gives inventory      product lifecycle trends,
a combination of the value of     managers more flexibility to        companies can avoid this type
the product and the storage       align purchasing patterns with     of situation.
costs associated with holding     actual customer demand.
the inventory. It is usually a                                           But be warned that if you
big number that the executive     Improved inventory                 don’t address obsolete stock
management team and               forecasting                        today, it will just continue to
shareholders see, and they        Forecasting is not always          grow. Don’t let accounting
don’t like it.                    the most popular subject           drive poor operating rules.
                                  to inventory planners and          Get obsolete inventory off
Inventory ABC classification      managers, but there is no          the books, and utilise that
When it comes to classifying      escaping the conversation          open warehouse space for
inventory it is usually safe to   as forecasting is done by          productive and profitable
follow the Pareto Principle,      every make-to-stock or             inventory turns.
also known as the 80/20 rule.     purchase-to-stock company.
The Pareto Principle is the       It is possible to improve          Understand customers’
theory that most businesses       forecasting but inventory          service level needs
see 80% of their sales            forecasting best practices         What kind of service, in terms
come from roughly 20% of          should begin with ensuring         of lead time and availability,
customers. ABC Classification      data accuracy first. For            do customers require? It is
for inventory management          example, sales and marketing       no use to provide a higher
is a very similar approach.       may have been influencing           service than required as it
Classifying inventory items       demand through pricing and         costs the company money.
into A, B, C and D (80%,          promotion activity. First, you     Understand how customers
15%, 5%, 0%) based on sales       must understand and collect        are using products and what
volume is an industry best        the inputs that drive the core     they expect in availability and
practice when managing            of the demand. Separate out        delivery time. If a seven-day
inventory.                        seasonality and trends.            lead time is good enough
                                                                     for the customer, you might
    The most common metric            Use the demand that is         be able to lower inventory
to use is Annual Sales            as close to real customer          levels and rely more on
Volume when doing ABC             demand as possible,                smaller expedited orders to
Classification to calculate        preferably point of sales          save on inventory storage
inventory for each group.         data. If you forecast off          costs. However, in today’s
Special consideration needs       consignments, and the              competitive environment, if
to be taken for new and           consignments don’t reflect          you fail to deliver sales orders
critical items in the inventory.  true customer order                in a timely manner, customers
                                  quantity and dates (based          will not hesitate to jump to
Revised purchase order            on unavailability and back         one of the competitors.
cycles and quantities             orders), the data is tainted
Another effective strategy for    and will skew forecasting.             In conclusion, inventory
better managing inventory         When the right inputs are          is the measuring stick of the
turnover is to purchase           available and the data is          entire supply chain. It reflects
smaller and more frequent         clean, then it’s time to review    the agility and profitability
order quantities to reduce the    the forecasting methods.           of the supply chain. The only
overall inventory carried.                                           sustainable way to reduce
                                  Eliminate excess and               inventory is to improve supply
    Determining order             obsolete stock levels              chain processes. To do this,
frequencies is one of the         Once inventory reaches the         the organisation needs an
key variables of a supply         obsolete stage of its life-        end-to-end view of the entire
chain. One way can be to          cycle, it’s typically too late to  chain and the walls between
stay at the same number of        take actions that will result      departments need to be torn
annual orders but reallocated                                        down. •

June 2016 | Logistics News                                                                             17
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