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ABAP Keyword Documentation → ABAP Overview → ABAP and Unicode →Differences between Unicode and Non-Unicode Programs
The ABAP key word documentation describes the ABAP statements for both Unicode and non-Unicode systems. Only Unicode programs can be compiled and executed in Unicode systems. In non-Unicode systems, this is also possible for non-Unicode programs. However, Unicode programs should also be used in non-Unicode systems, for the following reasons:
This makes Unicode programs easier to understand, more robust, and easier to maintain than non-Unicode programs.
The following section lists the language constructs and statements for which there are differences between Unicode and non-Unicode programs: