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Web Services for Self-Registration
and Master Data Changes 
Users of Web services can use this function to carry out self-registration or master data changes. These Web services can be executed as BSP applications using a Web client.
The following scenarios are supported with these Web services:
· Registration of a person
· Registration of an organization and their contact person
· Changes to the master data of registered people, organizations and their contact persons
SAP delivers a number of sample BSP applications that you can copy and modify to suit your requirements.
Registration of a person
When a person is registered, a user, a central person and a business partner are created. The user and the business partner are linked via a central person.
The user inherits the authorizations of a reference user, whose authorizations you defined earlier. The business partner of the business partner category Person is created in the business partner roles Internet Users, Payers, and Consumers.
The access data (user ID, alias name, password) of the users can be displayed or changed through the Internet user role. The roles Payer and Consumer of the business partner are required for payroll/sales-dependent business transactions.
The following figure explains the connection between the user, the central person and the business partner after a person has registered.

Graphic: Registration of a person
Registration of an organization and their contact person
The registration of an organization is carried out by a contact person. A user, a central person and two business partners, linked to each other via a contact person relationship, are created in the system with this registration.
A business partner of the category Person is created in the roles Internet users and Contact partners for the contact person. As this person also carries out the orders of the organization when acting as deputy, a user with the corresponding authorizations of a reference user are created for the contact person.
User and business partner of the contact person are linked through a central person.
At the same time, the second business partner of the category Organization is created in the roles Consumer and Payer. The reference to both business partners is created through a relationship.
The following figure explains the connection between the user, the central person and the business partner of a contact person and the contact person relationship to the respective organization.

Graphic: Registration of an organization and their contact person
Master Data Changes
The Web services for master data changes allow users of Web services to maintain address and communication data themselves.
For more information about the settings to be made for BSP applications for self-registration and master data changes, see the CRM IMG, under Customer Relationship Management ® E-Commerce ® Basic Settings for E-Commerce ® Internet User ® Special Settings for E-Service.