How To Fix /IWBEP/CM_V4_MED130 - Ref. constr.: Navigation property '&1' in '&2' targets collection

/IWBEP/CM_V4_MED130 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 130

• Message text: Ref. constr.: Navigation property '&1' in '&2' targets collection

Self-Explanatory Message

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/IWBEP/CM_V4_MED130 - Details

• The SAP error message /IWBEP/CM_V4_MED130 indicates that there is an issue with a navigation property in an OData service. Specifically, the error message states that the navigation property &1 in the entity &2 targets a collection, which means that the property is expected to return multiple values (a collection) but is being treated as a single value.
  
  Cause:
  
  Incorrect Data Model Configuration: The navigation property is defined as a collection in the data model, but the code or the OData service is trying to access it as a single entity.
  Service Implementation Issues: The implementation of the OData service may not correctly handle the navigation property, leading to a mismatch between the expected and actual data types.
  Query Issues: The OData query being executed may be incorrectly formed, attempting to retrieve a single entity instead of a collection.
  
  
  Solution:
  
  Check the Data Model: Review the data model definition in the SAP backend (e.g., using SEGW transaction)