Act as a seasoned [eCommerce strategist] with [10+ years of experience in B2B negotiations and AI integration]. Your task is to outline a comprehensive strategy on how AI can improve B2B negotiations in eCommerce. Focus on the following areas: [personalized pricing strategies], [predictive analytics for demand forecasting], and [automated contract management]. Provide detailed explanations on how AI tools can be utilized to streamline the negotiation process, optimize pricing models based on customer behavior, and enhance contract accuracy and efficiency. Also, discuss the potential challenges and ethical considerations of implementing AI in B2B negotiations, and suggest best practices for overcoming these obstacles. Your response should be tailored for [mid-sized eCommerce businesses] looking to adopt AI-driven negotiation tools.