What is Client? How to Create a New Client in SAP SCC4

By : Jessica Blake Jessica Blake
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⚡ Smart Summary

Creating a new Client in SAP SCC4 establishes an isolated logical workspace inside one SAP instance. This tutorial defines the SAP Client concept, explains the three standard clients (000, 001, 066), and walks through the SCC4 transaction step-by-step for setting up a fresh client.

  • 🏢 Core Definition: A SAP Client is an isolated customer workspace inside one SAP instance, numbered 000 to 999, with its own data, customizing, and user records.
  • 🗂️ Client Contents: Each Client holds Application Data, Customizing Data, and User Master Records that control authorizations and tenant-specific behavior.
  • 🧱 Standard Clients: Client 000 is the master template, 001 is a customizable copy, and 066 is the EarlyWatch diagnostic Client for monitoring.
  • 🛠️ SCC4 Workflow: Use transaction SCC4 then New Entries to define Client number, city, logical system, currency, and role before saving.
  • 💼 Landscape Benefit: Separate Clients let teams run development, testing, and production environments inside the same SAP system without data leakage.
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Create a New Client in SAP SCC4

What is a SAP Client?

A Client in SAP represents a customer. Each customer maps to one Client, and a single SAP instance can host many Clients without any additional software installation. The Client model enforces strict data isolation, so one Client cannot view the data of another Client, even though both share the same underlying system.

SAP Client

As shown above, Clients 100 and 200 coexist under one SAP roof. SAP allows you to create Client numbers ranging from 000 to 999, giving organizations significant flexibility to map tenants, environments, and projects to dedicated workspaces.

What Does a SAP Client Contain?

Every SAP Client packages three distinct data layers. Understanding these layers helps administrators decide what gets copied during a Client refresh and what stays local to each environment.

  1. Application Data: Operational records that live in database tables — sales orders, master data, financial postings, and similar transactional content.
  2. Customizing Data: Configuration that customers build when tailoring SAP modules to their business processes, such as document types, account assignments, and workflows.
  3. User Master Record: Authorization details assigned to each user. Basis consultants maintain these records and the role assignments that govern access.

Why Use the SAP Client Concept?

The Client architecture provides measurable business and technical advantages, which is why SAP SaaS providers and enterprise customers rely on it:

  1. SAP service providers can host many customers on a small number of SAP Systems, lowering infrastructure and licensing overhead.
  2. Cost savings extend beyond hardware and software — multiple customers reuse the same application solution, including administration and support.
  3. Clients help shape a clean SAP landscape: you can dedicate one Client to development, one to testing, and another to production within the same system.

Standard SAP Clients: 000, 001, and 066

SAP ships with three standard Clients out of the box:

  1. 000
  2. 001
  3. 066

000 Client (Master Client): Available immediately after SAP R/3 installation. It contains a simple organizational structure of a test company and includes parameters for all applications, standard settings, and configurations for the control of standard transactions. It also stores examples used across many business application profiles, along with Client-independent data.

001 Client (Customizable Copy): A duplicate of Client 000 that includes the same test company. Its settings remain Client-independent once configured or customized. Most administrators use Client 001 as the source when creating a new Client.

066 Client (EarlyWatch Client): Known as the EarlyWatch Client. The SAP EarlyWatch Alert is a diagnostic service for monitoring SAP and non-SAP systems through the SAP Solution Manager. Alerts cover performance issues, average response time, current system load, database administration, and similar operational signals.

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How to Create a New Client in SAP SCC4

Although SAP technically allows Client numbers from 000 to 999, maintaining a large number of Clients quickly becomes operationally challenging. The recommended approach is to keep only as many Clients as your landscape genuinely needs. Follow the steps below to create a new Client through transaction code SCC4.

Step 1) Execute T-Code SCC4.

Execute T-Code SCC4 to create new client

Step 2) The transaction opens on the initial screen for SAP Clients.

SCC4 initial screen for SAP Clients

Click New Entries to start creating a new SAP Client.

Click New Entries to create SAP Client

Step 3)

  1. Enter the basic Client details as shown below:
  • Client number and description
  • City to which the Client belongs (for example, NY-New York)
  • Logical System in the format <SID>CLNT<Client Number>
  • Standard Currency (for example, EUR)
  • Client Role such as Customizing, Demo, Training/Education, or Production
  1. Enter your Client-specific data and set the permissions you require.
  2. Save your entries.
  3. Press F3 to return to the SCC4 overview screen.

Enter Client details in SAP SCC4 New Entries form

Step 4) The new Client appears in the SCC4 list. In this example, Client 100 has been created successfully.

New SAP Client 100 created in SCC4

FAQs

Client 000 is the SAP master Client delivered with the system. Client 001 is a customizable copy of 000 used as a base for new Clients. Client 066 is the EarlyWatch Client used for SAP diagnostic monitoring and performance alerts.

The transaction code SCC4 is used to create and maintain Clients in SAP. After executing SCC4, choose New Entries to define the Client number, city, logical system, standard currency, and Client role before saving the configuration.

No. Each SAP Client provides strict data isolation. Application data, master records, and customizing data remain visible only inside their own Client, which lets a single SAP system safely host multiple tenants, environments, or business units.

AI assists Basis teams by recommending Client roles, validating SCC4 entries, detecting risky configurations, and flagging unusual authorization assignments. AI copilots also automate post-creation tasks like Client copy planning, transport routing, and EarlyWatch alert triage.

Yes. AI models analyze historical SAP landscape patterns and suggest suitable Client roles such as Customizing, Test, or Production. They also recommend authorization profiles based on user behavior, reducing manual Basis effort and lowering the risk of misconfigured access.

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