How To Fix W/144 - Language ID & is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: W/ -

• Message number: 144

• Message text: Language ID & is invalid

Self-Explanatory Message

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• What is the cause and solution for SAP error message W/144 - Language ID & is invalid ?

  SAP Error Message:
  
  W/144 Language ID & is invalid
  
  Cause:
  This warning message indicates that the system has encountered an invalid or unrecognized language ID (language key) during processing. The language ID provided does not conform to the expected format or is not defined in the SAP system's language settings.
  Common scenarios causing this error include:  
  
  A language key that is mistyped or does not exist in the system.  
  Data migration or interface programs passing an incorrect language code.  
  Custom developments or user inputs where the language ID is not validated properly.  
  Missing or incomplete language installation in the SAP system.
  
  
  Explanation:
  
  SAP language IDs are typically two-character codes (e.g., EN for English, DE for German, FR for French).  
  The system checks the language ID against its list of valid languages (table T002).  
  If the language ID is not found or invalid, the system issues this warning.
  
  
  Solution:
  
  
  Verify the Language ID:  
  
  Check the language ID being passed or entered. Ensure it matches one of the valid language keys in the system.  
  Use transaction SE16 or SE16N to view table T002 (Languages) to confirm valid language keys.
  
  
  
  Correct the Input:  
  
  If the language ID is coming from user input or an interface, correct the source data to use a valid language key.
  
  
  
  Check Custom Code or Interfaces:  
  
  Review any custom programs, BAPIs, or interfaces that set or pass language IDs.  
  Add validation logic to ensure only valid language keys are used.
  
  
  
  Install Missing Languages (if applicable):  
  
  If the language is valid but not installed in the system, install the language using transaction SMLT.
  
  
  
  Debugging:  
  
  If unsure where the invalid language ID is coming from, use debugging tools or add logging to trace the source.
  
  
  
  
  Related Information:
  
  Table T002: Contains all valid language keys in the SAP system.  
  Transaction SMLT: Language installation and management.  
  SAP Note / Documentation: Check SAP Notes for any known issues related to language IDs in your SAP version.  
  Language Key Format: Usually two uppercase letters (e.g., EN, DE, FR). Some systems may have exceptions, but generally, this format is standard.
  
  
  Summary:
  
  Cause: Invalid or unrecognized language ID used in the system.  
  Solution: Verify and correct the language ID, ensure it exists in T002, fix source data or custom code, and install missing languages if needed.
  
  
  If you provide the context where this error occurs (e.g., during data upload, report execution, or specific transaction), I can help with more targeted advice.