<![CDATA[Sari Murni, a tofu manufacturer in Pondok Labu, relied partly on manual records for orders, payments, and transaction documents, making records difficult to trace and increasing the risk of inconsistent information. This study implemented a web-based sales information system integrating product and customer management, orders, production, delivery, invoices, payments, accounts receivable, and reporting. Requirements were collected through a literature review, direct observation, and interviews with the enterprise owner, and development followed the iterative Prototype model. The application was constructed using PHP, CodeIgniter 3, MySQL, and Apache through XAMPP, with separate Administrator and Customer access roles. Black-box testing examined authentication, master data, orders, transaction documents, financial records, and reporting, while white-box inspection evaluated authentication and payment-processing logic. All documented functional testing categories produced their expected outcomes. The implemented application centralized transaction records, generated invoices and delivery notes, recorded full and partial payments, updated outstanding balances, retained payment histories, and presented period-based sales reports. These findings demonstrate functional integration of sales and receivables administration tailored to the enterprise's operational workflow. However, improvements in processing time, error frequency, and operating costs were not quantitatively measured. Further evaluation should investigate sustained use, system reliability, and operational performance under routine sales and production operating conditions. ]]>
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