Each of the versions contains localisations for particular countries. For example, we are running one database in the USA localisation, and one in the Canadian localisation. The USA database / company has the applicable states and taxes. The Canadian database / company, contains the taxation required for Canada, plus the state bank information.
When a transaction occurs, each localisation creates a legally correct document.
Just from what I have seen, the language is probably the least of the issues. The taxation methods would be the reason to not install the wrong version and an incorrect localisation.
Why not contact your SAP rep and ask about the licensing keys?
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