ABAP Keyword Documentation → ABAP Glossary
client
Organizational unit in AS ABAP. For each logon to AS ABAP, a client ID must be specified. This ID enables a logon to a specific client. The various clients in an AS ABAP have separate user master records and separate authorizations. Client-specific data is split by the client column in application tables. Application programs generally run in application clients. There is also a system client for performing system-specific or administrative tasks.