How To Fix /IWBEP/CM_V4_MED348 - Navigation properties not allowed for complex property collection '&1'

/IWBEP/CM_V4_MED348 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 348

• Message text: Navigation properties not allowed for complex property collection '&1'

Self-Explanatory Message

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/IWBEP/CM_V4_MED348 - Details

• The SAP error message /IWBEP/CM_V4_MED348 indicates that there is an issue with the use of navigation properties in a complex property collection within an OData service. This error typically arises when you attempt to navigate through a collection of complex types, which is not allowed in the OData protocol.
  
  Cause:
  
  Complex Property Collection: The error occurs when you try to access a navigation property on a collection of complex types. In OData, navigation properties are meant to link to entities, not to collections of complex types.
  Incorrect Model Definition: The OData service model may be incorrectly defined, where a complex type is being treated as an entity type, or navigation properties are incorrectly defined.
  
  
  Solution:
  
  Review the OData Model: Check the definition of your OData model. Ensure that you are not trying to navigate through a collection of complex types. If you need to access related data, consider changing the model to use entity types