How To Fix RSDS123 - The language field &1 in segment &2 is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 123

• Message text: The language field &1 in segment &2 is missing

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS123 - The language field &1 in segment &2 is missing ?

  The SAP error message RSDS123 indicates that there is a missing language field in a specific segment of a data source. This error typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when dealing with data extraction or data loading processes.
  Cause:
  The error is usually caused by one of the following issues:
  
  Missing Language Data: The language field is not populated in the data source or the data being processed. This can happen if the data source is not properly configured or if the data extraction process does not include language information.
  Incorrect Data Source Configuration: The data source may not be set up correctly to handle multiple languages, or the relevant language settings may not be defined.
  Data Inconsistency: There may be inconsistencies in the data being loaded, such as missing records or fields that are expected to contain language information.
  
  Solution:
  To resolve the RSDS123 error, you can take the following steps:
  
  
  Check Data Source Configuration:
  
  Verify that the data source is correctly configured to include the language field. Ensure that the relevant settings for language handling are properly defined.
  
  
  
  Review Data Extraction Logic:
  
  If you are using a custom extraction logic (e.g., ABAP code), ensure that the logic correctly populates the language field. Make sure that the extraction process retrieves the necessary language data.
  
  
  
  Validate Data:
  
  Check the source data for completeness. Ensure that the records being extracted contain the required language information. If necessary, update the source data to include the missing language fields.
  
  
  
  Check for Language Settings:
  
  In the SAP system, check the language settings for the relevant data source and ensure that the languages you are working with are properly defined and activated.
  
  
  
  Re-run the Data Load:
  
  After making the necessary corrections, re-run the data load process to see if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to the specific data source or extraction process you are using for additional guidance.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the RSDS123 error. SAP frequently updates its knowledge base with solutions for common errors.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) and RSO2 (DataSource Maintenance) to manage and troubleshoot data sources.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and to share solutions.
  
  By following these steps, you should be able to identify the cause of the RSDS123 error and implement a solution to resolve it.