Greenmash was commissioned to help resolve stock-outs of malaria tests and treatments in Kenya using an SMS-based solution. Before, stock-outs were common, with over 40% of facilities out of stock at a time and resupply taking 1-2 months. Greenmash designed an SMS system to collect stock data weekly from health facilities. This provided real-time visibility and reduced stock-outs, with positive health outcomes like increased testing and treatment. An evaluation found stock-outs were eliminated and response rates exceeded 97%, demonstrating the solution's effectiveness.