Mansi Maurya enhanced error handling and client lookup reliability in the openMF/fineract repository by introducing externalId-based lookups and improving exception messaging. She focused on refining the ClientNotFoundException to pass externalId values, which improved both error reporting and the clarity of client-facing messages. Her work also updated batch API rollback logic to better reflect externalId lookup pathways, increasing system observability and reducing mean time to resolution for missing client issues. Using Java and leveraging skills in API development, backend engineering, and testing, Mansi delivered a targeted feature that addressed a specific reliability gap, demonstrating depth in error management and system diagnostics.