Behpakhsh Company, as one of the largest distribution and logistics companies in the country, plays a significant role in Supply Chain Management (SCM). SCM involves coordinating and integrating material, information, and financial flows across units to ensure the efficient and effective procurement and distribution of goods. In today's Volatile, Uncertain, Complex, and Ambiguous (VUCA) environment, effective inventory management is essential for the operational success of distribution companies. This paper examines the innovative approach adopted by Behpakhsh Company to leverage InvAgent technology, an artificial intelligence–based language model that uses zero-shot learning to enhance inventory management and reduce costs. By analyzing data and making intelligent decisions under changing conditions, InvAgent improves transparency and adaptability across Behpakhsh's supply chain. The implementation of this model has not only increased efficiency and productivity in Behpakhsh's distribution operations but also helped mitigate the risks of inventory shortages and excessive stockpiling. Ultimately, this study demonstrates that Behpakhsh, through advanced technologies and Large Language Models (LLMs), has achieved improved supply chain performance and enhanced customer satisfaction.