How To Fix RSDS127 - The field of validity (upper limit) &1 in segment &2 is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 127

• Message text: The field of validity (upper limit) &1 in segment &2 is missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS127 - The field of validity (upper limit) &1 in segment &2 is missing ?

  The SAP error message RSDS127 indicates that there is a missing field of validity (upper limit) in a specific segment of a DataSource. This error typically occurs in the context of SAP BW (Business Warehouse) when working with DataSources, especially during the extraction process.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Field Definition: The field that is supposed to represent the upper limit of validity for a certain segment is not defined in the DataSource.
  Incorrect DataSource Configuration: The DataSource may not be properly configured to include all necessary fields, or there may be a mismatch between the DataSource and the underlying data structure.
  Changes in Data Structure: If there have been changes in the underlying data structure (e.g., database table or view) that the DataSource is based on, it may lead to missing fields in the DataSource definition.
  
  Solution:
  To resolve the RSDS127 error, you can follow these steps:
  
  
  Check DataSource Definition:
  
  Go to the DataSource in the SAP BW system (transaction code RSA1).
  Verify the field definitions in the DataSource and ensure that the field for the upper limit of validity is included.
  
  
  
  Update DataSource:
  
  If the field is missing, you may need to update the DataSource. This can be done by:
  
  Modifying the DataSource to include the missing field.
  Activating the DataSource after making changes.
  
  
  
  
  
  Check Underlying Data Structure:
  
  Ensure that the underlying data structure (e.g., database table or view) has the field defined correctly.
  If there have been changes to the underlying structure, you may need to regenerate the DataSource.
  
  
  
  Re-activate the DataSource:
  
  After making any changes, make sure to re-activate the DataSource to ensure that the changes take effect.
  
  
  
  Test Extraction:
  
  After making the necessary adjustments, test the extraction process again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  RSA1: Data Warehousing Workbench
  RSD1: DataSource Maintenance
  
  
  Documentation: Refer to SAP Help documentation for detailed information on DataSource configuration and troubleshooting.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to the RSDS127 error.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or BW team for further investigation, as they may have additional insights or access to system logs that can help diagnose the problem.