After SAP R/3 System Installation, you have to configure Transport Management System ( TMS ) for the following reasons:
If your TMS Configuration is inconsistent, you may not be able to create Transportable Requests. You can create requests like Local Change Requests.This means, although your requests type Customizing or Workbench, you will not be able to release them to produce Data and Cofile files. You will only release object locks and no transport will be possible to other systems.As tp program is not configured automatically after Installation, you will not be able to import requests to your system.