Authorization Profiles 
Every user interface element is defined and configured using its attributes. Your authorization profiles determine whether you can carry out a configuration or enhancement of user interface elements. The following two authorization profiles are of importance:
S_DEVELOP
With the authorization profile for ABAP Workbench, you can make any and all changes to a user interface developed with Web Dynpro ABAP.
S_WDR_P13N
You can use this authorization profile to make changes to a user interface if the S_DEVELOP authorization profile is not assigned to your user. It authorizes you to configure a Web Dynpro application in administrator mode.
These profiles enable the inclusion of the navigation links, such as Configure Page, Customize Page, and Show Configurable Areas, within Floorplan Manager applications that allow you to move from the application runtime to design time.
See also Authorizations for Personalizing and Customizing in the Web Dynpro ABAP documentation in the SAP NetWeaver Library under