Abstract: Method and system for interfacing with one or more business systems having different data formats and different data entry states using a single interface system, and for synchronizing a database of a large business system, such as an enterprise resource planning system that does not itself provide for database synchronization functionality, with an external database.

Abstract: Method and system for rollback of an Enterprise Resource Planning (ERP) system to a previous state after one or more functional modifications have been implemented in the ERP system. In the method, functional modification data is received, previous version data of the functional modification data is stored, the functional modification data is implemented in the ERP system, rollback command data is received, and the previous version data of the functional modification data is implemented in the ERP system in place of the functional modification data. The invention permits an ERP system to be quickly restored to proper operation after a functional modification interferes with proper operation of the ERP system.