One SAP system can be used for several independent companies (or company subsidiaries). The client is used to separate data from these companies. Therefore, most database tables in the SAP system have a customer key. This is used, for example, for transaction data, master data, and customer-specific setup data. However, there is also a setting that is valid for all clients (the so-called cross-client setting).
In short: The customer is a key field in most database tables for sharing data from multiple companies using the same SAP system. Each company has its own customer number.
Christian trebing
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