How To Fix /IWBEP/CM_V4_MED254 - The advertised operation '&1' of property '&2' in CT '&3' does not exist

/IWBEP/CM_V4_MED254 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 254

• Message text: The advertised operation '&1' of property '&2' in CT '&3' does not exist

Self-Explanatory Message

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/IWBEP/CM_V4_MED254 - Details

• The SAP error message /IWBEP/CM_V4_MED254 typically indicates that there is an issue with the OData service configuration, specifically related to the metadata of the service. This error occurs when an operation that is expected to be available for a certain property in a certain context (CT) is not defined or does not exist.
  
  Cause:
  
  Missing Operation: The operation (like GET, POST, PUT, DELETE, etc.) that is being called on the specified property does not exist in the service definition.
  Incorrect Metadata: The metadata for the OData service may not be correctly defined or may not include the operation for the specified property.
  Service Versioning: If there are multiple versions of the service, the operation may exist in one version but not in another.
  Model Configuration: The data model may not be correctly configured to expose the required operations for the specified property.
  
  
  Solution:
  
  Check Service Metadata: Use the OData service URL (usually ending with $metadata) to check