How To Fix SDDL_PARSER_MSG523 - Syntax "&1" is not supported in redefined associations

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 523

• Message text: Syntax "&1" is not supported in redefined associations

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG523 - Syntax "&1" is not supported in redefined associations ?

  The SAP error message SDDL_PARSER_MSG523 indicates that there is a syntax issue related to redefined associations in your SAP system. This error typically occurs when you are working with the Service Definition Language (SDL) in the context of SAP Gateway or OData services.
  Cause:
  The error message states that the syntax "&1" is not supported in redefined associations. This usually means that there is an attempt to redefine an association in a way that is not allowed by the SDL syntax rules. Common causes include:
  
  Incorrect Association Redefinition: You may be trying to redefine an association with an unsupported syntax or structure.
  Incompatible Data Types: The data types of the source and target entities in the association may not match.
  Missing or Incorrect Annotations: Required annotations for the association may be missing or incorrectly defined.
  Versioning Issues: If you are using different versions of the OData service or SDL, there may be compatibility issues.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Association Definition: Check the definition of the association in your SDL. Ensure that it adheres to the correct syntax and structure. Make sure that you are not trying to redefine an association in a way that is not supported.
  
  
  Check Data Types: Verify that the data types of the entities involved in the association are compatible. Ensure that the keys and properties used in the association are correctly defined.
  
  
  Validate Annotations: Ensure that all required annotations for the association are present and correctly defined. This includes checking for any missing or incorrect annotations that may affect the association.
  
  
  Consult Documentation: Refer to the official SAP documentation for SDL and OData services to understand the correct syntax and rules for defining associations. This can provide insights into what is allowed and what is not.
  
  
  Test Changes: After making the necessary adjustments, test the changes in a development environment to ensure that the error is resolved.
  
  
  Seek Help from SAP Community: If you are still facing issues, consider reaching out to the SAP Community or SAP Support for further assistance. They may provide additional insights or solutions based on your specific scenario.
  
  
  Related Information:
  
  SAP Gateway: Understanding how SAP Gateway works and how it handles OData services can provide context for this error.
  Service Definition Language (SDL): Familiarize yourself with SDL syntax and rules, especially regarding associations and entity relationships.
  OData Services: Learn about OData service creation and management in SAP, as this error is often encountered in that context.
  
  By following these steps and understanding the underlying concepts, you should be able to resolve the SDDL_PARSER_MSG523 error effectively.