How To Fix /IWBEP/CM_V4_APPS075 - Content-type not set for stream property '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_APPS -

• Message number: 075

• Message text: Content-type not set for stream property '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_APPS075 - Content-type not set for stream property '&1' ?

  The SAP error message /IWBEP/CM_V4_APPS075 Content-type not set for stream property '&1' typically occurs in the context of SAP Gateway services, particularly when dealing with OData services that involve media streams or binary data. This error indicates that the content type for a specific stream property is not defined or set correctly.
  Cause:
  
  Missing Content-Type: The stream property in the OData model does not have an associated content type defined. This is often the case when the property is expected to handle binary data (like images, documents, etc.) but lacks the necessary metadata.
  Incorrect Model Configuration: The OData service might not be configured correctly to handle the specific stream property, leading to the absence of a content type.
  Service Implementation Issues: There may be issues in the implementation of the service that prevent the content type from being set correctly.
  
  Solution:
  
  
  Define Content-Type in the Model:
  
  Ensure that the stream property in your OData model has a content type defined. This can typically be done in the service implementation or the metadata definition.
  For example, if the stream property is meant to handle images, you might set the content type to image/jpeg or image/png.
  
  
  
  Check Service Implementation:
  
  Review the implementation of the OData service to ensure that the content type is being set correctly when the stream property is being processed.
  If you are using a custom implementation, ensure that the GET method for the stream property correctly sets the content type in the response.
  
  
  
  Update Metadata:
  
  If you have made changes to the model or the service, ensure that the metadata is updated and reflects the changes. You can regenerate the metadata document if necessary.
  
  
  
  Testing:
  
  After making the necessary changes, test the OData service again to ensure that the error is resolved and that the content type is being set correctly.
  
  
  
  Related Information:
  
  OData Services: Understanding how OData services work in SAP Gateway is crucial. Familiarize yourself with the concepts of entity types, properties, and how to handle media streams.
  SAP Gateway: Review the documentation related to SAP Gateway and OData services, especially regarding media types and stream properties.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for additional error messages or logs that might provide more context on the issue.
  
  By addressing the content type definition and ensuring proper service implementation, you should be able to resolve the error message /IWBEP/CM_V4_APPS075.