What is a client in SAP system?

Question

有人可以解释一下使用 ABAP 堆栈的 SAP NetWeaver 系统中的客户端是什么，以及它如何在同一安装中创建逻辑分离？

Answer 1

One SAP system can be used for several independent companies (or subsidiaries of a company). The client is used to separate the data of these companies. Most database tables in an SAP system therefore have the client is a key. This is used eg for transactional data, master data and client dependent customizing data. Nevertheless there is also customizing that is valid across all clients (so called cross client customizing.)

In a nutshell: Client is a key field in most database tables to separate data of multiple companies using the same SAP system. Each company has its own client number.

Answer 2

In addition to Christian Trebing's answer, there are some more important points to note.

1. A users logs into a client. Every client has separate set users and authentication.

2. Generally all the database operation on a table having "client" field, the code does not need to specify the client. It is already taken care by the system.

Most of the standard processes, (business transactions/ external communication etc) already are set up specific to the client and execute that way.