How To Fix SDDIC_ADT_DDLX054 - Obligatory annotation 'Metadata.layer' not found

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLX - Messages for CDS Metadata Extension

• Message number: 054

• Message text: Obligatory annotation 'Metadata.layer' not found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLX054 - Obligatory annotation 'Metadata.layer' not found ?

  The SAP error message SDDIC_ADT_DDLX054 indicates that there is a missing obligatory annotation called Metadata.layer in your ABAP Development Tools (ADT) environment. This error typically arises when you are working with CDS (Core Data Services) views or other artifacts that require specific metadata annotations.
  Cause:
  The error occurs because the Metadata.layer annotation is required for certain operations or deployments in SAP, particularly when dealing with CDS views. This annotation is used to specify the layer of the metadata, which can be important for managing the visibility and accessibility of the data model in different contexts (e.g., for different applications or users).
  Solution:
  To resolve this error, you need to add the missing Metadata.layer annotation to your CDS view or the relevant artifact. Here’s how you can do that:
  
  
  Open the CDS View: Navigate to the CDS view that is causing the error in your ABAP Development Tools.
  
  
  Add the Annotation: You can add the Metadata.layer annotation in the following way:
  @AbapCatalog.sqlViewName: 'YOUR_SQL_VIEW_NAME'
  @AbapCatalog.compiler.compareFilter: true
  @Metadata.layer: #BASIC  " or #CUSTOM, #TRANSPORT, etc. based on your requirement
  define view YOUR_VIEW_NAME as select from YOUR_TABLE
  {
      key field1,
      field2,
      ...
  }
  Replace #BASIC with the appropriate layer based on your use case. The possible values for Metadata.layer include:
  
  #BASIC
  #CUSTOM
  #TRANSPORT
  #LOCAL
  
  
  
  Activate the CDS View: After adding the annotation, activate the CDS view to ensure that the changes take effect.
  
  
  Check for Other Annotations: Ensure that all other required annotations are also present in your CDS view to avoid similar errors.
  
  
  Related Information:
  
  Documentation: Refer to the official SAP documentation on CDS views and annotations for more details on how to use annotations effectively.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for specific scenarios related to this error.
  Community Forums: If you continue to face issues, consider reaching out to SAP Community forums or other developer communities for assistance.
  
  By following these steps, you should be able to resolve the SDDIC_ADT_DDLX054 error and successfully work with your CDS views in SAP.