How To Fix SADL_GEN_DRFT_MSG054 - CDS-View &1 has no valid primary key

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GEN_DRFT_MSG - Message for Draft generation

• Message number: 054

• Message text: CDS-View &1 has no valid primary key

What causes this issue?

A CDS-view must contain its parent's key fields. This key fields must be
used to build the compositional association.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GEN_DRFT_MSG054 - CDS-View &1 has no valid primary key ?

  The SAP error message SADL_GEN_DRFT_MSG054 indicates that a Core Data Services (CDS) view does not have a valid primary key defined. This is a common issue when working with CDS views in SAP, particularly when the view is expected to be used for data manipulation or as a data source for other applications.
  Cause
  The error occurs because:
  
  Missing Primary Key: The CDS view does not have a primary key defined, which is necessary for uniquely identifying records in the view.
  Composite Keys: If the view is supposed to have a composite key, it may not be properly defined.
  Inappropriate Annotations: The annotations that define the key fields may be missing or incorrectly specified.
  
  Solution
  To resolve this error, you can take the following steps:
  
  
  Define a Primary Key:
  
  Open the CDS view in the ABAP Development Tools (ADT) or the relevant editor.
  Ensure that you have defined a primary key using the @Key annotation. For example:
  define view Z_MY_CDS_VIEW
  as select from my_table
  {
    key field1,
    key field2,
    field3
  }
  
  In this example, field1 and field2 are defined as the primary key.
  
  
  
  Check Composite Keys:
  
  If your CDS view is supposed to have a composite key, ensure that all key fields are included in the definition and marked with the @Key annotation.
  
  
  
  Review Annotations:
  
  Make sure that the annotations are correctly applied. The primary key fields should be annotated properly to indicate their role as keys.
  
  
  
  Activate the CDS View:
  
  After making changes, activate the CDS view to ensure that the changes take effect.
  
  
  
  Test the View:
  
  After activation, test the CDS view to ensure that it works as expected and that the error message no longer appears.
  
  
  
  Related Information
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. CDS views can be used for reporting, analytics, and data manipulation.
  Key Annotations: The @Key annotation is crucial for defining primary keys in CDS views. It helps the system understand how to uniquely identify records.
  SAP Documentation: For more detailed information, refer to the official SAP documentation on CDS views and annotations.
  
  By following these steps, you should be able to resolve the SADL_GEN_DRFT_MSG054 error and ensure that your CDS view has a valid primary key defined.