How To Fix SDDIC_ADT_DDLX060 - Annotation '&1' already defined at the same layer and variant in '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLX - Messages for CDS Metadata Extension

• Message number: 060

• Message text: Annotation '&1' already defined at the same layer and variant in '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLX060 - Annotation '&1' already defined at the same layer and variant in '&2' ?

  The SAP error message SDDIC_ADT_DDLX060 indicates that there is a conflict due to an annotation that has already been defined at the same layer and variant in the specified object. This typically occurs in the context of the ABAP Development Tools (ADT) when working with annotations in your ABAP code, particularly when defining or modifying data models or service definitions.
  Cause:
  The error is caused by attempting to define an annotation that has already been defined for the same layer and variant. This can happen if:
  
  You are trying to add an annotation that already exists in the same context (e.g., in the same CDS view or service definition).
  There may be a duplicate entry in your code or configuration.
  You might be working with multiple developers who have made conflicting changes.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Duplicates: Review the code or configuration where the annotation is defined. Look for any duplicate definitions of the annotation &1 in the object &2. Ensure that you are not trying to redefine an existing annotation.
  
  
  Remove or Modify the Duplicate: If you find a duplicate annotation, you can either remove it or modify it as necessary. Ensure that only one definition exists for the annotation in the specified layer and variant.
  
  
  Check Version Control: If you are using a version control system, check the recent changes made by other developers. There might be a recent change that introduced the duplicate annotation.
  
  
  Consult Documentation: If you are unsure about the correct usage of the annotation, refer to the SAP documentation or guidelines for the specific annotation you are working with.
  
  
  Rebuild or Activate: After making the necessary changes, try to activate or rebuild the object again to see if the error persists.
  
  
  Related Information:
  
  Annotations in ABAP: Annotations are metadata that provide additional information about the data model or service. They are often used in Core Data Services (CDS) views and OData services.
  ABAP Development Tools (ADT): ADT is an Eclipse-based development environment for ABAP programming. Familiarity with ADT can help in managing annotations and understanding the context of errors.
  SAP Notes and Community: If the issue persists, consider searching for relevant SAP Notes or asking for help in the SAP Community forums, where other developers may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the SDDIC_ADT_DDLX060 error.