How To Fix LTR2_ES173 - Source field &2 (for mapping &3-&4) exists more than once in table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_ES -

• Message number: 173

• Message text: Source field &2 (for mapping &3-&4) exists more than once in table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_ES173 - Source field &2 (for mapping &3-&4) exists more than once in table &1 ?

  The SAP error message LTR2_ES173 indicates that there is a problem with the mapping of fields in a table during a data transfer or transformation process. Specifically, the error states that the source field (denoted as &2) exists more than once in the specified table (denoted as &1) for the mapping defined between two fields (denoted as &3 and &4). This can lead to ambiguity in data processing, as the system cannot determine which instance of the source field to use.
  Cause:
  
  
  Duplicate Fields: The source field specified in the mapping exists multiple times in the source table. This could be due to:
  
  Incorrect table design or data model.
  Data extraction or transformation logic that does not account for duplicates.
  Changes in the underlying data structure that were not reflected in the mapping configuration.
  
  
  
  Mapping Configuration: The mapping configuration may not be set up correctly, leading to the same field being referenced multiple times.
  
  
  Solution:
  
  
  Check Table Structure: Review the structure of the source table (denoted as &1) to identify why the source field (denoted as &2) appears multiple times. You can do this by:
  
  Using transaction codes like SE11 (Data Dictionary) to view the table definition.
  Checking for any views or joins that might be causing the duplication.
  
  
  
  Adjust Mapping: Modify the mapping configuration to ensure that each source field is uniquely referenced. This may involve:
  
  Removing duplicate references in the mapping.
  Adjusting the logic to ensure that only one instance of the source field is used.
  
  
  
  Data Cleansing: If the duplicates are not intended, consider cleansing the data to remove or consolidate duplicate entries in the source table.
  
  
  Consult Documentation: Review any relevant documentation or guidelines for the specific data transfer or transformation process you are working with to ensure compliance with best practices.
  
  
  Testing: After making changes, test the mapping again to ensure that the error is resolved and that the data is being processed correctly.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and others that may help in analyzing the data structure and mappings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Data Modeling Best Practices: Review best practices for data modeling and mapping in SAP to avoid similar issues in the future.
  
  By following these steps, you should be able to resolve the LTR2_ES173 error and ensure that your data mapping is correctly configured.