To make the most of Messenger for customer support, you need to optimize it regularly and monitor its performance. Here are some ways to optimize Messenger for customer support. First, update your greeting message and instant replies frequently. You can use these messages to inform your customers of new products, features, or promotions. You can also use these messages to address common issues or concerns that your customers may have. Second, analyze your Messenger data and insights. You can use the Facebook page insights and the Messenger platform dashboard to measure and improve your Messenger activity and performance. You can track metrics such as the number of messages, conversations, response time, response rate, and customer feedback. You can also use the data and insights to identify trends, patterns, and opportunities for improvement. Third, test and experiment with different Messenger strategies and tactics. You can use tools such as split testing, chatbot builders, and Messenger plugins to try out different ways to use Messenger for customer support. You can also use tools such as customer feedback loops, user testing, and A/B testing to evaluate and optimize your Messenger results.