How To Fix /IWBEP/CM_V4_MED369 - Mapping properties only allowed in "Entity Type-specific" complex types

/IWBEP/CM_V4_MED369 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 369

• Message text: Mapping properties only allowed in "Entity Type-specific" complex types

Self-Explanatory Message

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/IWBEP/CM_V4_MED369 - Details

• The SAP error message /IWBEP/CM_V4_MED369 indicates that there is an issue with the way mapping properties are defined in your OData service. This error typically arises when you are trying to use mapping properties in a context where they are not allowed, specifically outside of "Entity Type-specific" complex types.
  
  Cause:
  
  Incorrect Definition: The error usually occurs when you define mapping properties in a complex type that is not specific to an entity type. Mapping properties are intended to be used only within entity types or complex types that are directly associated with an entity type.
  Service Metadata: If the OData service metadata is incorrectly defined, it may lead to this error. This can happen if the service is trying to expose properties that are not correctly mapped to the underlying data model.
  Model Configuration: There may be issues in the way the data model is configured in the backend, leading to inconsistencies in how