PT XYZ is the largest cellular telecommunications company in Indonesia. One of their products
are starter pack. Starter pack is a package that designed to serve the start of a service, it contains
many items that have been predetermined to be used according to the rules. Starter pack can be
considered as the initial identity before performing communication. Starter pack contains a SIM
card that will be used by the mobile phone user with bonus of phone credit, some basic rules
such as how to reload your phone credit and checking the credit.
In fulfilling the needs of its customers, PT XYZ divides the distribution of starter packs into 10
regions, namely Sumbagut, Sumbagsel, Sumbagteg, Jabotabek, West Java, Central Java, East
Java, Balinusra, Borneo and Sulmarija. In order to fulfill the demand of starter pack, PT XYZ
has a problem in inventory at Jabotabek region, there are inventory stock that not approach the
sales, which causes too much inventory in the warehouse. The amounts of starter packs are
available in the warehouse always exceeds the number of sales, resulted in a buildup of inventory
in the warehouse. Excess inventory occurs because the determination of the amount of inventory
is not good because in determining the amount of inventory, PT XYZ just do a prediction by
looking at the amount of current inventory, demand planning and seeing the demand pattern of
earlier periods. In order a starter pack to the central warehouse, PT XYZ, Jabotabek region order
the starter pack on Monday in every week. PT XYZ have a policy that the service level must be
99.9983% without back order.This excess inventory can caused companies must spend a
considerable cost. Based on these problems, a starter pack inventory management becomes one
of the things, that is important for companies to be able to minimize inventory costs that must be
spent by the company. In order to improve inventory policy of Starter pack, PT XYZ needs to be
optimized in several ways, including amount of the maximum and minimum stock in inventory
in order to minimize the total cost of inventory.
Inventory policy planning in this research is using the P model (periodic review) with variant
demand to make a good policy in PT XYZ when determine an inventory.
Using P model (periodic review) with variant demand method this research can make an
inventory policy with safety stock, maximum inventory, optimum quantity order and time for
ordering while in the existing condition the company did not have and can minimize total
inventory cost of stater pack as 32% or Rp.158.375.229 from existing condition. Carrying cost
vi
have saving Rp 158.497.769 or 24% from existing condition without shortage cost because in
proposed condition does not experience a shortage inventory. In proposed condition order cost
more expensive than the existing condition as Rp. 122.537.
Key word: P model ( periodic review), Inventory Policy, Telecommunication Company in Indonesia
