How To Fix ESH_OM_OBJ_MODEL_RP2628 - An assoziation cannot be changed to a composition

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_RP2 - Object Model Repository (2)

• Message number: 628

• Message text: An assoziation cannot be changed to a composition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_RP2628 - An assoziation cannot be changed to a composition ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2628 indicates that there is an issue with the relationship between objects in the SAP Enterprise Search (SAP ESH) model. Specifically, it states that an association cannot be changed to a composition. This typically occurs when you are trying to modify the relationship type between two entities in the object model, but the system does not allow this change due to certain constraints.
  Cause:
  
  
  Relationship Type Constraints: In SAP, associations and compositions are different types of relationships. An association is a loose relationship, while a composition implies a stronger relationship where the lifecycle of the child is tied to the parent. If the existing relationship is defined as an association, it cannot be changed to a composition if there are existing data or structural constraints.
  
  
  Existing Data: If there are existing records that violate the rules of a composition (e.g., if the child objects can exist independently of the parent), the system will prevent the change.
  
  
  Model Configuration: The configuration of the object model may not support the change due to how the entities are defined or related.
  
  
  Solution:
  
  
  Review the Object Model: Check the definitions of the entities involved in the relationship. Ensure that the intended change from association to composition is logically valid based on the business requirements.
  
  
  Data Integrity Check: Ensure that there are no existing records that would violate the composition relationship. If there are, you may need to either delete or modify these records before making the change.
  
  
  Modify Relationships: If you are certain that the change is necessary and valid, you may need to:
  
  Remove the existing association.
  Create a new composition relationship.
  Ensure that all related data adheres to the rules of a composition.
  
  
  
  Consult Documentation: Refer to the SAP documentation for the specific version you are using to understand the implications of changing relationships in the object model.
  
  
  Testing: After making changes, thoroughly test the object model to ensure that the new relationship behaves as expected and does not introduce any new issues.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues.
  SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to address the error message ESH_OM_OBJ_MODEL_RP2628 effectively.