A system and method for parallel synchronization of enterprise application landscapes during migration is disclosed. The system comprises a primary processing unit operatively connected to a memory unit, a persistent storage unit, and a communication interface unit configured to establish continuous data connections with a legacy enterprise environment and a target enterprise environment. A transaction capture unit is configured to detect transactional changes associated with data insertion, modification, deletion, and structural updates from both environments. A structural mapping unit converts captured transactional data into corresponding data structures compatible with the other environment using predefined mapping information stored in the persistent storage unit. A synchronization control unit sequences the converted transactional data and coordinates ordered propagation to maintain alignment between the environments. A reconciliation unit compares corresponding data states and resolves inconsistencies to ensure consistency across both environments.