Beginning in version 10, the OutSystems Platform now offers built in JSON serialization/deserialization in the visual IDE (Service Studio). A big improvement from previous versions, where you had to make your own serialize/deserialize actions or install existing ones from the OutSystems Forge (a free repository of community made modules to speed up application delivery).

Recently I was trying to help someone in the OutSystems Forums and I faced some problems myself trying to use these new built in actions.