How To Fix AXT_MODEL205 - Parent key field &1 is not mapped to a field in child table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL -

• Message number: 205

• Message text: Parent key field &1 is not mapped to a field in child table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_MODEL205 - Parent key field &1 is not mapped to a field in child table &2 ?

  The SAP error message AXT_MODEL205 indicates that there is a mapping issue between a parent key field and a child table in a data model. This typically occurs in the context of data modeling or when working with data structures in SAP applications, such as SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  The error arises when a parent key field (usually a primary key in a parent table) is not properly mapped to a corresponding field in the child table. This can happen due to several reasons:
  
  Missing Mapping: The parent key field is not included in the mapping configuration for the child table.
  Incorrect Configuration: The mapping might be incorrectly set up, leading to a mismatch between the parent and child tables.
  Changes in Data Model: If there have been recent changes to the data model, such as renaming fields or changing table structures, the mappings may need to be updated accordingly.
  Data Source Issues: If the data source for the child table does not include the parent key field, this error can occur.
  
  Solution:
  To resolve the AXT_MODEL205 error, you can follow these steps:
  
  
  Check Mapping Configuration:
  
  Go to the data model configuration where the mapping is defined.
  Ensure that the parent key field is correctly mapped to a corresponding field in the child table.
  
  
  
  Update Data Model:
  
  If there have been changes to the data model, update the mappings to reflect these changes.
  Ensure that all necessary fields are included in the mapping.
  
  
  
  Validate Data Sources:
  
  Check the data sources for both the parent and child tables to ensure that they are correctly defined and that the parent key field is available in the child table's data source.
  
  
  
  Test the Mapping:
  
  After making the necessary changes, test the mapping to ensure that the error no longer occurs.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on mapping configurations and data modeling best practices.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP data modeling.
  
  
  
  Related Information:
  
  Data Modeling in SAP: Understanding how data models work in SAP, including the relationships between tables, is crucial for troubleshooting mapping issues.
  SAP BW and HANA: Familiarity with the specific tools and interfaces used in SAP BW or HANA can help in resolving such errors.
  SAP Community: Engaging with the SAP community forums can provide insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the AXT_MODEL205 error in your SAP environment.