How To Fix /IWBEP/CM_V4_MED268 - Property '&1' has an ETag property but is not a stream property

/IWBEP/CM_V4_MED268 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 268

• Message text: Property '&1' has an ETag property but is not a stream property

Self-Explanatory Message

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/IWBEP/CM_V4_MED268 - Details

• The SAP error message /IWBEP/CM_V4_MED268 indicates that there is an issue with the handling of ETag properties in an OData service. Specifically, the error states that a property has been defined as an ETag property, but it is not a stream property. This can lead to confusion in the OData service, as ETags are typically used for concurrency control and are expected to be associated with stream properties.
  Cause
  The error can occur due to the following reasons:
  
  Incorrect Metadata Definition: The property in question is defined as an ETag in the metadata but does not correspond to a stream property (e.g., a binary or media type).
  Model 
  Configuration Issues: There may be inconsistencies in the way the OData model is configured, particularly in the annotations related to the entity type.
  Service Implementation Errors: The implementation of the OData service may not correctly handle the ETag properties, leading to this error.
  
  Solution
  To resolve this error, you