How you integrate market trends into demand forecasting models

1- How do you integrate market trends into demand forecasting models? 2- Wha t metrics would you monitor to improve forecast accuracy over time? 3- Which statistical techniques do you find most effective for short-term vs. long term forecasting? 4- Forecasting for seasonal products can be challenging; what strategies do you employ to address this? 5- What role does collaboration with other departments play in your forecasting processes?