According to Vigtil (2007), EDI is an enabler of Vendor Managed Inventory (VMI). This paper is focused on the use of VMI-based web ordering systems in Thailand, a developing economy, and based on the activities of the first tier suppliers of original equipment manufacturers (OEMs). The VMI systems used by the OEMs are based on the following process. The system will generate orders either on a monthly or weekly cycle depending on customer orders and inventory status. The generated orders are then translated into web-based purchase orders which the suppliers can access electronically. Based on the purchase orders, the suppliers are then required to print a standardized label including a barcode and attach to the products. The labels improve receipt accuracy and invoice management. The suppliers will then use the web-based system to inform the customers that the products have been shipped prior to physical arrival of the products.This type of web-based system, while commonly in use in developed economies, is not as common in developing economies such as Thailand. It is important therefore to understand how the supplier community has received and perceives such systems. From a Thai industry perspective, it is also important to understand the difficulties, if any, that implementation of such systems bring as well as understand factors that can enable effective implementation of such technologies. This issues have not been studied in a Thai automotive context and understanding the issues will be of significant benefit to other organizations in the automotive as well as other industries in Thailand that intend to deploy webbased VMI systems. Potentially, it could also hold lessons for organizations in other developing economies. Therefore, this study is based on the phenomenon of adoption of web-based ordering