How To Fix /IWBEP/CM_V4_MED105 - Partner attribute found for nav-prop '&1' in complex type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 105

• Message text: Partner attribute found for nav-prop '&1' in complex type '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED105 - Partner attribute found for nav-prop '&1' in complex type '&2' ?

  The SAP error message /IWBEP/CM_V4_MED105 typically indicates an issue related to the OData service, specifically concerning the navigation properties and their associated partner attributes in the complex type definitions. This error can occur when there is a mismatch or misconfiguration in the OData model, particularly when defining relationships between entities.
  Cause:
  
  Incorrect Navigation Property Definition: The navigation property defined in the OData service may not correctly reference the partner attribute in the associated complex type.
  Model Inconsistencies: There may be inconsistencies in the data model, such as missing or incorrectly defined relationships between entities.
  Service Metadata Issues: The service metadata might not be correctly generated or might be out of sync with the underlying data model.
  Versioning Issues: If there are multiple versions of the OData service, there might be discrepancies between them.
  
  Solution:
  
  Check Navigation Property Definitions: Review the definitions of the navigation properties in your OData model. Ensure that they correctly reference the partner attributes in the complex types.
  Validate the Data Model: Ensure that the data model is correctly defined and that all relationships between entities are properly established.
  Regenerate Service Metadata: If there have been changes to the data model, regenerate the OData service metadata to ensure it reflects the current state of the model.
  Check for Versioning Issues: If you are using multiple versions of the OData service, ensure that the correct version is being called and that it is consistent with the data model.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for additional error messages that might provide more context on the issue.
  
  Related Information:
  
  OData Model Documentation: Review the SAP documentation on OData service development to understand how to properly define navigation properties and complex types.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to this error.
  Community Forums: Engage with the SAP Community or forums where similar issues may have been discussed, as other users may have encountered and resolved the same error.
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/CM_V4_MED105 error in your SAP OData service.