Hi Khun Tullaya….Changing behaviour is one of the hardest approaches and even more difficult when to sustain. You and your project’s member are so dedicated and you must have push so many efforts to changes their health behaviour. At my company, we use the LINE in our medical assistance too. It’s easy to use and it’s a 24/7 accessible, especially when chat options are active. Our staff has to response 24/7 even the queries / SOS request is not an emergency. For me, using social media to communicate, inspire and manage NCD patient is effective in terms of direct communication while challenging in terms of control and monitoring. Like you said, creating new content to hit their heart is energy consumed. I am not sure if big data analytic can go with the LINE like does on twitter or Facebook. You may find that kind of options or other marketing options available in the LINE to adapt to your project. The LINE has an office in Bangkok, they may feel honoured to take part in your project improving our national health. At our company, we also have been working on advanced options on Facebook , a chatbot to communicate with the customer and to help them reach us soonest when they need help. The chatbot has an interesting back-end option offering us some analytic function.