Abstract: The present invention provides systems and methods for migrating data from at least one data source to at least one data target according to one or more migration objects or migration rules. The migration rules, for example, may control how the data migration is done. For instance, the migration rules may describe how the source data may be modified during the migration process to meet the requirements of the target system. In exemplary embodiments, a neutral interface is provided which comprises a mapping of external data fields to business objects located on the target system.