globalLanguageFallback
From SAP Enable Now Wiki
Scope
SAP Companion parameter, specified either in the URL or in the SAP Companion parameters in the linked application.
Purpose
This parameter specifies the language in which help content should be displayed, if content is not available in the user's (interface) language. This defaults to en-US, for English (United States).
Usage
Specified as:
globalLanguageFallback=[ll-CC|null]
or
globalLangAlt=[ll-CC|null]
where ll-CC is the (ISO-639) language and (ISO-3166) country code. Specifying null will result in no help content being displayed if help is not available in the user's language.