How To Fix CFD_REGISTRY_CHECK380 - Foreign Key View &1 must have annotation '@ObjectModel.representativeKey'

SAP Error Message - Details

• Message type: E = Error

• Message class: CFD_REGISTRY_CHECK - Custom Fields: Messages for Registry Check

• Message number: 380

• Message text: Foreign Key View &1 must have annotation '@ObjectModel.representativeKey'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFD_REGISTRY_CHECK380 - Foreign Key View &1 must have annotation '@ObjectModel.representativeKey' ?

  The SAP error message CFD_REGISTRY_CHECK380 indicates that a foreign key view in your SAP system is missing a required annotation. Specifically, the error states that the foreign key view must have the annotation @ObjectModel.representativeKey. This annotation is essential for defining the representative key of the entity, which is used in various operations, including data retrieval and representation in UI elements.
  Cause:
  The error typically arises in the following scenarios:
  
  Missing Annotation: The foreign key view does not have the @ObjectModel.representativeKey annotation defined in its metadata.
  Incorrect Configuration: The view may not be properly configured to represent the relationship between entities, leading to issues in data binding and retrieval.
  Development Errors: During the development of the CDS (Core Data Services) views, the necessary annotations may have been overlooked.
  
  Solution:
  To resolve this error, you need to add the required annotation to the foreign key view. Here are the steps to do so:
  
  
  Open the CDS View: Access the CDS view that is causing the error in the ABAP Development Tools (ADT) or the relevant development environment.
  
  
  Add the Annotation: Include the @ObjectModel.representativeKey annotation in the definition of the foreign key view. The annotation should point to the key field(s) that represent the entity.
  Example:
  @AbapCatalog.sqlViewName: 'Z_MY_VIEW'
  @ObjectModel.representativeKey: 'KeyField'
  define view Z_My_View as select from my_table
  {
      key my_table.KeyField,
      my_table.OtherField
  }
  
  
  Activate the View: After making the changes, activate the CDS view to ensure that the changes take effect.
  
  
  Test the Changes: Run the application or report that was previously generating the error to confirm that the issue has been resolved.
  
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) are a way to define semantic data models in SAP. They allow for the creation of complex data models that can be consumed by various applications.
  Annotations: Annotations in CDS views provide metadata that can influence the behavior of the view in the SAP Fiori UI, OData services, and other contexts.
  SAP Documentation: For more detailed information on annotations and CDS views, refer to the official SAP documentation or the SAP Help Portal.
  
  If you continue to experience issues after making these changes, consider checking for other related annotations or configurations that may also need to be adjusted.