This report is intended to study the problem and propose solutions. A case study of duty free warehouse of PTT public company limited.By default the data collected from our warehouse, duty free, as follows: The steps to receive the items. To store the item. Importing goods from storage, shipping and inventory count can be divided according to the item for which the storage format of 4 categories is an item that is a component of the oil drilling rods. The pipe temperature control and chemical goods, from data analysis, experience the problem that is happening is that delays in data and document storage location problems which are problems that occur result in delays with every step.
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