ERP and SCM are complex systems since they handle every operation of the enterprise in holistic manner. But challenge for developers is to handle the complexity internally without exposing them to user. So we designed the system that created interface in the manner user operate in real life so the objective of the organisation are aligned with ERP activities. And we used familiar windows interface for update of data. And we did not stop at that. Where built in Windows Interfaces were inadequate to handle complexity of ERP data we implemented complex user defined windows controls to achieve that user friendly interface.