How To Fix /IWBEP/CM_V4_MED338 - Etag property '&1' is not allowed in a Complex Type.

/IWBEP/CM_V4_MED338 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 338

• Message text: Etag property '&1' is not allowed in a Complex Type.

Self-Explanatory Message

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/IWBEP/CM_V4_MED338 - Details

• The SAP error message /IWBEP/CM_V4_MED338 indicates that there is an issue with the ETag property in a complex type within an OData service. This error typically arises when the ETag property is not correctly defined or is not allowed in the context of the complex type being used.
  
  Cause:
  
  Invalid ETag Definition: The ETag property is not defined correctly in the metadata of the OData service. ETags are used for concurrency control and should be defined as part of the entity type, not complex types.
  Complex Type Misconfiguration: The complex type may be incorrectly configured to include properties that are not allowed, such as ETags.
  Service Implementation Issues: There may be issues in the implementation of the OData service where the complex type is being used incorrectly.
  
  
  Solution:
  
  Check Metadata Definition: Review the metadata definition of your OData service. Ensure that the ETag property is defined only in entity types and not in complex types.
  Modify Complex