Story Book 232: 🚀 Day 4 – #OperationSelfLearnings From a working SAP CAP backend → to a properly structured Fiori Elements app. What changed today: ✔ Clean service definition in .cds ✔ Correct projection layer ✔ Validation before CREATE / UPDATE ✔ Custom action (approve) ✔ Real Fiori app (not preview mode) Big lesson: Fiori Elements runs on metadata. If something doesn’t work — check the service definition first. Layer by layer. Learning SAP CAP the right way. #SAP #CAP #FioriElements #SAPBTP BuildInPublic DeveloperJourney