To enable an SAP transaction for Internet use, you need to create an ITS service. An ITS service consists of files that are needed to control a transaction which was called by a Web browser.
An ITS service contains:
An ITS service description
One or more themes
One or more HTML templates
ICF service definition
Some ITS services may also contain:
Language resource files
MIME files (graphics, images, sound, or video components)
Each service corresponds to a transaction in the SAP system.
You create these files using the Web Application Builder that is integrated in the ABAP Workbench.
Dynamic files such as service descriptions, HTML templates, and language resources are stored in the SAP system database by the Web Application Builder.
Static files such as MIME files are also stored in the SAP system database. At runtime they will be read once and then stored in the ICM cache.
Within a SAP system a service is identified by the service name, not by the SAP transaction code (although these may often be the same). When creating a service, you must ensure that the service name conforms to the usual naming conventions applicable to customer systems.
Therefore service names have to start with y or z.
For further information, see