How To Fix ST391 - Enter a language

SAP Error Message - Details

• Message type: E = Error

• Message class: ST - Terminology Database

• Message number: 391

• Message text: Enter a language

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ST391 - Enter a language ?

  The SAP error message ST391 "Enter a language" typically occurs when a user attempts to access a transaction or function that requires a language to be specified, but none has been provided. This can happen in various contexts, such as when a user is trying to log in or when accessing certain screens that require language settings.
  Cause:
  
  Missing Language Parameter: The user has not specified a language in the login screen or in the transaction.
  User Profile Settings: The user profile may not have a default language set.
  System Configuration: The SAP system may not be configured to support multiple languages, or the required language may not be installed.
  
  Solution:
  
  
  Specify a Language: When logging in, ensure that you select a language from the dropdown menu on the login screen. If you are using a custom transaction, make sure to include a language parameter in the URL or transaction call.
  
  
  Check User Profile:
  
  Go to transaction SU01 (User Maintenance).
  Enter your user ID and click on "Display".
  Check the "Defaults" tab to see if a default language is set. If not, set a default language.
  
  
  
  System Configuration:
  
  Ensure that the required language is installed in the SAP system. This can be checked by going to transaction SMLT (Language Transport) and verifying the installed languages.
  If the language is not installed, you may need to install it using the appropriate transport requests.
  
  
  
  SAP GUI Settings: If you are using SAP GUI, ensure that the GUI is configured correctly to support the desired languages.
  
  
  Related Information:
  
  Language Codes: SAP uses specific codes for languages (e.g., EN for English, DE for German, FR for French). Make sure you are using the correct code.
  User Authorizations: Ensure that the user has the necessary authorizations to access the language settings.
  SAP Notes: Check SAP Notes for any known issues or patches related to language settings and error ST391.
  
  If the problem persists after trying the above solutions, it may be helpful to consult with your SAP Basis team or refer to SAP support for further assistance.