How To Fix SDDL_PARSER_MSG227 - Key field &1 is missing in the ON condition of the composition definition

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 227

• Message text: Key field &1 is missing in the ON condition of the composition definition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG227 - Key field &1 is missing in the ON condition of the composition definition ?

  The SAP error message SDDL_PARSER_MSG227 indicates that there is a problem with the composition definition in your SAP system. Specifically, it states that a key field (denoted as &1) is missing in the ON condition of the composition definition. This typically occurs in the context of defining relationships between different entities in the SAP data model, particularly when using the SAP HANA database or when working with SAP's data modeling tools.
  Cause:
  The error is caused by the following reasons:
  
  Missing Key Field: The key field that is supposed to be part of the ON condition in the composition definition is not included. This can happen if the definition was not properly set up or if there was an oversight during the configuration.
  Incorrect Composition Definition: The composition definition may not align with the underlying data model, leading to missing references.
  Data Model Changes: If there have been recent changes to the data model (like adding or removing fields), the composition definition may need to be updated accordingly.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review the Composition Definition:
  
  Go to the relevant transaction or tool where the composition definition is created or maintained (e.g., SAP HANA Studio, SAP Web IDE).
  Check the ON condition of the composition definition to ensure that all required key fields are included.
  
  
  
  Add the Missing Key Field:
  
  Identify the key field that is missing (as indicated by &1 in the error message).
  Modify the ON condition to include this key field. The syntax should correctly reference the key field from the relevant tables or entities.
  
  
  
  Validate the Data Model:
  
  Ensure that the data model is correctly defined and that all relationships are properly established.
  If there have been changes to the data model, ensure that the composition definitions are updated to reflect these changes.
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, test the composition definition to ensure that it works as expected without generating errors.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct configuration, refer to SAP documentation or guides related to data modeling and composition definitions.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  Training and Resources: Consider training resources or documentation on SAP data modeling, especially if you are new to working with composition definitions.
  
  By following these steps, you should be able to resolve the SDDL_PARSER_MSG227 error and ensure that your composition definitions are correctly configured.