Essbase uses the ESSLANG variable to define the locale of a computer. For example, to support American English, you can set ESSLANG to English_UnitedStates.Latin1@Binary.
For each Essbase Server installation, you must specify the ESSLANG variable, which should be set to the locale that is defined for the computer's operating system.
For client computers, specifying the ESSLANG variable is optional. If ESSLANG is defined, Essbase uses the ESSLANG value as the computer locale. If ESSLANG is not specified, the operating system locale is used.
The ESSLANG variable is set when you install Essbase. See the Oracle Hyperion Enterprise Performance Management System Installation and Configuration Guide.
For non-Unicode-mode clients and applications, the client and Essbase Server locale values must be the same. For Unicode-mode applications, client and Essbase Server locale values can be different.