How To Fix SALV_X_API121 - Unit & is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: SALV_X_API - Messages for ALV API exceptions

• Message number: 121

• Message text: Unit & is not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SALV_X_API121 - Unit & is not defined ?

  The SAP error message SALV_X_API121 Unit & is not defined typically occurs when working with the SAP ALV (ABAP List Viewer) framework, particularly when trying to display or manipulate data in an ALV grid or list. This error indicates that there is an issue with the unit of measure (UoM) that is being referenced in your ALV report or program.
  Cause:
  
  Undefined Unit of Measure: The unit of measure you are trying to use in your ALV report is not defined in the system. This could happen if the unit is not maintained in the relevant tables (e.g., T006 for units of measure).
  Incorrect Data Mapping: The data being passed to the ALV might be referencing a unit of measure that does not exist or is misspelled.
  Data Source Issues: If the data source (like a database table or structure) does not contain the expected unit of measure, it can lead to this error.
  
  Solution:
  
  
  Check Unit of Measure Definition:
  
  Go to transaction code CUNI or SE11 and check the table T006 to see if the unit of measure you are trying to use is defined.
  If it is not defined, you may need to create it or correct the spelling if it is misspelled.
  
  
  
  Review Data Mapping:
  
  Ensure that the data being passed to the ALV is correctly mapped and that the unit of measure is valid.
  Check the data source to ensure that it contains the correct unit of measure.
  
  
  
  Debugging:
  
  If you have access to the ABAP code, you can set breakpoints and debug the program to see where the unit of measure is being set and why it might be undefined.
  Look for any transformations or calculations that might be affecting the unit of measure.
  
  
  
  Check ALV Configuration:
  
  If you are using a custom ALV configuration, ensure that the configuration is set up correctly and that it references valid units of measure.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the ALV framework and units of measure for any additional guidance or known issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CUNI: Maintain Units of Measure
  SE11: Data Dictionary (to check table definitions)
  SE80: Object Navigator (to check program and class definitions)
  
  
  
  Tables:
  
  T006: Units of Measure
  T006A: Units of Measure (Language-dependent texts)
  
  
  
  SAP Notes: Check SAP Notes for any specific issues related to the ALV framework and units of measure.
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it. If the issue persists, consider reaching out to your SAP support team for further assistance.