How To Fix /IWBEP/CM_V4_MED231 - Primitive type '&1' not found

/IWBEP/CM_V4_MED231 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 231

• Message text: Primitive type '&1' not found

Self-Explanatory Message

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/IWBEP/CM_V4_MED231 - Details

• The SAP error message /IWBEP/CM_V4_MED231 Primitive type '&1' not found typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a specified primitive type in the OData service definition. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Missing Primitive Type: The specified primitive type (e.g., Edm.String, Edm.Int32, etc.) is not defined in the OData service metadata.
  Incorrect Data Model: The data model might be incorrectly defined, leading to references to non-existent types.
  Service Activation Issues: The OData service may not be properly activated or registered in the SAP Gateway.
  Transport Issues: If the OData service was transported from one system to another, there might be inconsistencies in the data model.
  
  Solutions:
  
  Check Metadata: Verify the OData service metadata to ensure that the primitive type is defined. You can access the metadata by appending $metadata to the service URL.
  Define Missing Types: If the