How To Fix AXT_MODEL204 - Field &1 in table &2 is not compatible with parent key &3

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL -

• Message number: 204

• Message text: Field &1 in table &2 is not compatible with parent key &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_MODEL204 - Field &1 in table &2 is not compatible with parent key &3 ?

  The SAP error message AXT_MODEL204 indicates that there is a compatibility issue between a field in a specific table and its parent key. This typically occurs in the context of data modeling or when working with hierarchical data structures in SAP, such as in the context of SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  The error arises when the data type, length, or structure of a field in a child table does not match the expected characteristics of the corresponding parent key. This can happen due to:
  
  Data Type Mismatch: The field in the child table may have a different data type than the parent key.
  Length Mismatch: The length of the field in the child table may not match the length of the parent key.
  Inconsistent Definitions: The field definitions in the data model may not be consistent, leading to incompatibility.
  Modeling Errors: Errors in the data model configuration or during the creation of the data model can lead to this issue.
  
  Solution:
  To resolve the AXT_MODEL204 error, you can take the following steps:
  
  
  Check Field Definitions: Review the definitions of the field in the child table and the parent key. Ensure that they have the same data type and length.
  
  
  Adjust Data Types: If there is a mismatch, you may need to adjust the data type of the field in the child table to match that of the parent key.
  
  
  Modify Data Model: If the error is due to an inconsistency in the data model, you may need to modify the data model to ensure that the relationships between tables are correctly defined.
  
  
  Rebuild the Model: In some cases, it may be necessary to rebuild the data model or the specific object that is causing the issue.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on data modeling and compatibility requirements.
  
  
  Testing: After making changes, test the data model to ensure that the error is resolved and that the data behaves as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP to avoid similar issues in the future.
  
  By following these steps, you should be able to identify the root cause of the AXT_MODEL204 error and implement a solution to resolve it.