ESS – Employee Self Service is an web enabled tool used to update their own datas by the employee itself.
MSS- Manager Self Service is an web enabled tool used for Managers to take report or update the datas of subordinate.
To implement LEAVE REQUEST &APPROVAKL, both ESS and MSS are not mandatory. But ESS is required.However this functionality is developed to be avaialable in MSS also if a client wants have both ESS and MSS. Without MSS, the business flow of Leave request would be in ESS is like this:
1. An employee wants to take two weeks of leave. He or she accesses the Leave Request Web application. He or she sees in the Team Calendar that other team members also have leave at the same time. Nonetheless, he or she requests leave for the planned period.
2. The leave requires approval. The system automatically determines the approver responsible and lists the name in the Web application. If required, the employee can overwrite the name of the approver.

• ESS/MSS Architecture based on SAP NetWeaver 7.0
• Required Components and Usage Types in a ESS/MSS landscape
• Main steps for setting up a new ESS/MSS landscape
• Main steps for setting up ESS/MSS in an existing landscape
• Required SLD configuration Steps for a SAP ESS/MSS landscape
• SAP Enterprise Portal and its technical connection to the SAP Backend System, including the Single Sign-on (SSO) Configuration
• Technical configuration of ESS Business Packages in an SAPNW Enterprise Portal
• Technical configuration of Adobe Document Services
• Technical configuration of the Internet Graphics Server
• Technical configuration of the ESS/MSS WebDynpro application
• Applying ESS Patches using the Java Support Package Manager
• Description and solutions of the top ten problems