During March 2026, Harshit Saiom focused on improving API reliability in the openMF/fineract repository by addressing input validation for client creation. He implemented a reusable date format validation method in Java, using DateTimeFormatter to catch invalid patterns and prevent server errors. By integrating this validation into the backend’s client creation and update logic, he ensured that malformed dateFormat inputs now return HTTP 400 responses instead of HTTP 500 crashes. Harshit also expanded unit test coverage with parameterized tests for various edge cases, demonstrating a methodical approach to backend development and robust error handling through Java and comprehensive unit testing.