Message type: E = Error
Message class: OY - Customizing Basis
Message number: 001
Message text: Language & is not defined
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OY001
- Language & is not defined ?The SAP error message "OY001 Language & is not defined" typically indicates that the system is trying to access a language that has not been configured or is not available in the system. This can occur in various scenarios, such as when a user tries to log in with a language that is not supported or when a report or transaction is executed in an unsupported language.
Cause: Language Not Installed: The specified language has not been installed in the SAP system. Incorrect Language Code: The language code being used is incorrect or not recognized by the system. User Profile Settings: The user profile may be set to a language that is not defined in the system. Missing Language Packs: Language packs may not have been installed or activated in the SAP system.
Solution: Check Installed Languages: Go to transaction code SMLT (Language Transport) to check which languages are installed in your SAP system. If the required language is
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