Customizing Clients

Use

Clients are part of the defining technical structure of the SAP System. Each client contains its own master records and set of tables.

Customizing is either client-specific or cross-client, depending on which business data is configured. Cross-client Customizing is valid for all clients in an SAP System.

Functions

When you install the SAP System, the following clients are available:

  • Client 000 as SAP reference client

  • Client 001 as production preparation client

SAP Reference client (000)

All SAP tables are in the SAP Reference client. Sample entries, which you can change, exist for the tables in which you store your organizational structure.

The SAP Reference client contains the following settings:

  • Tables with default values

These tables are independent of the organization units.

  • Examples of the organization units

  • No application data, that is, no master data and no movement data

Do not use this client in production processing.

  • A default Customizing setting

SAP updates the settings in each new release. As a result, client 000 always has the current status.

For a release upgrade, SAP automatically updates:

  • Table contents and table structures

  • Programs

  • Screens

  • Forms

  • Online help

  • SAP Reference IMG

You can use the SAP reference client to copy default settings into other clients.

Production preparation client (001)

The production preparation client is identical to the SAP Reference client, i.e. you cannot use this client in production processing either. The Customizing settings are made in this client. You Customize it into your test environment.

Copy the new or changed table entries which are put in client 000 by SAP during a system or a release upgrade, using Release Customizing.

See also: Release-specific implementation guide

Activities

To set up a client:

Choose Start of the navigation pathAdministration  Next navigation step  System Administration  Next navigation step  Administration Next navigation step Client Administration Next navigation step .End of the navigation path

Then:

  1. Defining Clients

  2. Copying a Source Client

  3. Change country-specific default settings

See Client Copy .