Abstract: AN ASSESSMENT OF THE EFFECT OF COST ACCOUNTING FOR SUPPLY CHAIN OPTIMIZATION
This study assesses the effect of cost accounting on supply chain optimization in manufacturing companies in Lagos. The objectives are to evaluate how cost accounting supports supply chain efficiency, analyze its impact on financial performance, and identify the challenges faced. A survey design was employed, gathering data from 250 supply chain managers and cost accountants, derived using Taro Yamane's formula. A detailed case study of a major manufacturing company in Lagos provided comprehensive insights. The reliability coefficient score of the survey instrument was 0.89. Findings reveal that cost accounting significantly enhances supply chain optimization by providing accurate cost information and facilitating better decision-making. However, challenges such as data collection difficulties and integration with existing systems were noted. Recommendations include providing more training on cost accounting for supply chain professionals, simplifying data collection processes, and integrating cost accounting with overall supply chain management practices to improve efficiency and performance.