How To Fix RAP_CMP_CHECKS102 - Aggregation setting changed for property &1 of entity type &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: RAP_CMP_CHECKS - RAP Compatibility Checks Messages

• Message number: 102

• Message text: Aggregation setting changed for property &1 of entity type &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RAP_CMP_CHECKS102 - Aggregation setting changed for property &1 of entity type &2. ?

  The SAP error message RAP_CMP_CHECKS102 indicates that there has been a change in the aggregation setting for a property of an entity type in the context of the RAP (Rapid Application Programming) model. This typically occurs when there is a mismatch between the expected aggregation settings in the RAP model and the actual settings defined in the underlying data model or service definition.
  Cause:
  
  Model Changes: The error can occur if there have been recent changes to the data model, such as modifying the aggregation settings of a property (e.g., changing a property from single-valued to multi-valued or vice versa).
  Inconsistent Definitions: The entity type definition in the service might not match the definition in the underlying database or the data model.
  Versioning Issues: If there are multiple versions of the service or model, inconsistencies can arise if one version is not updated to reflect changes made in another.
  
  Solution:
  
  Review Changes: Check the recent changes made to the entity type and its properties. Ensure that the aggregation settings are consistent across all definitions (e.g., CDS views, service definitions).
  Update Service Definitions: If the aggregation settings have changed, update the service definitions accordingly to reflect the new settings.
  Regenerate Artifacts: After making changes, regenerate the necessary artifacts (e.g., service bindings, metadata) to ensure that the changes are applied correctly.
  Check for Dependencies: Ensure that any dependent objects (like other entities or services) are also updated to reflect the changes in aggregation settings.
  Test the Changes: After making the necessary adjustments, test the application to ensure that the error is resolved and that the application behaves as expected.
  
  Related Information:
  
  RAP Model: The RAP model is designed to simplify the development of business applications in SAP S/4HANA and SAP Business Technology Platform. Understanding the principles of the RAP model can help in troubleshooting issues related to entity definitions.
  SAP Notes and Documentation: Check SAP Notes and the official SAP documentation for any known issues or additional guidance related to the RAP model and error messages.
  Debugging Tools: Utilize debugging tools available in the SAP environment to trace the source of the error and understand the context in which it occurs.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.