How To Fix LTR_MODEL_APPL538 - Length mismatch for non-transparent relation between &1-&2 and &3-&4

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR_MODEL_APPL -

• Message number: 538

• Message text: Length mismatch for non-transparent relation between &1-&2 and &3-&4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR_MODEL_APPL538 - Length mismatch for non-transparent relation between &1-&2 and &3-&4 ?

  The SAP error message LTR_MODEL_APPL538 indicates a length mismatch for a non-transparent relation between two entities in the data model. This typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when there is an inconsistency in the data model definitions, particularly with the lengths of fields in the related tables or structures.
  Cause:
  The error is usually caused by one of the following issues:
  
  Field Length Mismatch: The lengths of the fields in the two related tables or structures do not match. For example, if one table has a field defined as CHAR(10) and the related table has the same field defined as CHAR(20), this will trigger the error.
  Data Model Changes: Changes made to the data model (like adding or modifying fields) without properly updating all related components can lead to inconsistencies.
  Transport Issues: If the data model was transported from one system to another, there might be discrepancies in the definitions between the source and target systems.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Field Definitions: 
  
  Go to the Data Dictionary (SE11) and check the field definitions for the tables or structures involved in the relation. Ensure that the lengths of the corresponding fields match exactly.
  
  
  
  Adjust Data Model:
  
  If you find a mismatch, adjust the field lengths in the relevant tables or structures to ensure they are consistent. This may involve modifying the data model in the SAP BW or HANA environment.
  
  
  
  Rebuild the Data Model:
  
  If necessary, you may need to rebuild the data model or the specific InfoObjects, InfoProviders, or other components that are causing the issue.
  
  
  
  Transport Consistency:
  
  If the issue arose after a transport, ensure that all related objects were transported correctly and that there are no inconsistencies between the source and target systems.
  
  
  
  Check for Dependencies:
  
  Look for any dependencies or references that might be affected by the changes you make. Ensure that all related components are updated accordingly.
  
  
  
  Testing:
  
  After making the necessary adjustments, test the data model to ensure that the error is resolved and that the data flows correctly.
  
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or RSA1 (Data Warehousing Workbench) to investigate and modify the data model.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Refer to SAP documentation for best practices on data modeling and handling field length issues.
  
  By following these steps, you should be able to identify and resolve the cause of the LTR_MODEL_APPL538 error in your SAP environment.