How To Fix RSODP_ABAP_CDS104 - Association &3 ignored: Key element &2 of target &1 in join

SAP Error Message - Details

• Message type: E = Error

• Message class: RSODP_ABAP_CDS -

• Message number: 104

• Message text: Association &3 ignored: Key element &2 of target &1 in join

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSODP_ABAP_CDS104 - Association &3 ignored: Key element &2 of target &1 in join ?

  The SAP error message RSODP_ABAP_CDS104 indicates that there is an issue with an association in a Core Data Services (CDS) view. Specifically, the error states that a key element of the target entity in a join is being ignored. This typically occurs when the key element specified in the association does not match the expected key in the target entity.
  Cause:
  
  Mismatch in Key Elements: The key element specified in the association does not exist in the target entity or does not match the key definition.
  Incorrect Association Definition: The association may be incorrectly defined, leading to a situation where the join cannot be properly established.
  Data Model Changes: Changes in the underlying data model (e.g., changes in the database tables or structures) that affect the keys used in the association.
  
  Solution:
  
  
  Check Association Definition: Review the CDS view definition and ensure that the association is correctly defined. Verify that the key element specified in the association matches the key in the target entity.
  Example:
  define association to target_entity as association_name
  on target_entity.key_element = source_entity.key_element
  
  
  Verify Key Elements: Ensure that the key elements used in the join are correctly defined in both the source and target entities. Check the data dictionary (SE11) for the definitions of the involved tables or views.
  
  
  Update CDS View: If there have been changes to the underlying data model, update the CDS view accordingly to reflect those changes.
  
  
  Test the Association: After making changes, activate the CDS view and test it to ensure that the association works as expected without errors.
  
  
  Consult Documentation: If you are unsure about the correct key elements or associations, refer to the SAP documentation or consult with a colleague who has experience with CDS views.
  
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Understanding how associations and joins work in CDS is crucial for effective data modeling.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error message.
  Debugging Tools: Use tools like the ABAP Debugger or the CDS view preview in the ABAP Development Tools (ADT) to analyze the behavior of the CDS view and identify issues.
  
  By following these steps, you should be able to resolve the RSODP_ABAP_CDS104 error and ensure that your CDS view functions correctly.