How To Fix SADL_GEN_DRFT_MSG103 - No free key field found in CDS View &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GEN_DRFT_MSG - Message for Draft generation

• Message number: 103

• Message text: No free key field found in CDS View &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GEN_DRFT_MSG103 - No free key field found in CDS View &1 ?

  The SAP error message SADL_GEN_DRFT_MSG103 indicates that there is no free key field found in the Core Data Services (CDS) view specified in the error message. This typically occurs when you are trying to create a draft or a new instance of an entity based on a CDS view that does not have a suitable key field defined.
  Cause:
  
  Missing Key Field: The CDS view does not have a key field defined. Key fields are essential for uniquely identifying records in a database table or view.
  Incorrect CDS View Definition: The CDS view may not be properly defined to include a key field, or the key field may not be marked correctly in the view.
  Incompatible Data Model: The data model being used may not be compatible with the draft handling mechanism, which requires a unique identifier.
  
  Solution:
  
  
  Check CDS View Definition:
  
  Open the CDS view in the ABAP Development Tools (ADT) or the relevant transaction (e.g., SE11).
  Ensure that at least one field is defined as a key field. You can do this by checking the @ObjectModel.key annotation or by marking a field as a key in the view definition.
  
  
  
  Modify the CDS View:
  
  If no key field exists, you may need to modify the CDS view to include a suitable key field. This could be a primary key from the underlying database table or a combination of fields that can uniquely identify a record.
  Example:
  define view Z_MY_CDS_VIEW
  as select from my_table
  {
    key field1,
    field2,
    field3
  }
  
  
  
  
  Activate the CDS View: After making changes, ensure that you activate the CDS view to apply the modifications.
  
  
  Check for Draft Handling: If you are using draft handling, ensure that the draft-enabled entity is correctly set up to work with the CDS view.
  
  
  Test the Changes: After making the necessary adjustments, test the functionality that was previously causing the error to ensure that the issue is resolved.
  
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) are a way to define semantically rich data models in SAP. They allow for the definition of views that can be consumed by various applications.
  Draft Handling: In SAP Fiori applications, draft handling is a mechanism that allows users to create and edit data without immediately saving it to the database. This requires a proper key field to manage drafts effectively.
  SAP Notes and Documentation: If the issue persists, consider checking SAP Notes or the official SAP documentation for any specific guidance related to your version of SAP or the specific CDS view you are working with.
  
  By following these steps, you should be able to resolve the SADL_GEN_DRFT_MSG103 error and ensure that your CDS view is correctly configured for draft handling.