How To Fix /IWBEP/CM_MGW_RT057 - Function is not allowed in a deferred processing mode of a changeset.

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 057

• Message text: Function is not allowed in a deferred processing mode of a changeset.

Self-Explanatory Message

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• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT057 - Function is not allowed in a deferred processing mode of a changeset. ?

  The SAP error message /IWBEP/CM_MGW_RT057 Function is not allowed in a deferred processing mode of a changeset typically occurs in the context of SAP Gateway and OData services when you are trying to execute a function that is not permitted in a deferred processing mode. This error is often related to the way changesets are handled in OData services, particularly when using batch processing.
  Cause:
  
  Deferred Processing Mode: The error indicates that the function you are trying to execute is not allowed in the context of a changeset that is being processed in deferred mode. Deferred processing is used to group multiple operations into a single request, but not all operations can be executed in this mode.
  Function Import: If you are trying to call a function import (a custom operation defined in the OData service) within a changeset, it may not be supported. Function imports typically require immediate execution and cannot be deferred.
  Service Configuration: The OData service may not be configured to allow certain operations in a batch request.
  
  Solution:
  
  Check Functionality: Review the OData service and ensure that the function you are trying to call is not intended to be executed in a deferred manner. If it is a function import, consider calling it outside of the changeset.
  Modify Request: If you need to execute multiple operations, separate the function call from the changeset. You can first execute the changeset and then call the function import in a separate request.
  Service Implementation: If you have control over the OData service implementation, consider modifying the service to handle the function call appropriately, or document the limitations for users.
  Review Documentation: Check the SAP documentation for the specific OData service you are using to understand the limitations and supported operations in batch requests.
  
  Related Information:
  
  SAP Gateway: Understand how SAP Gateway handles OData services, including batch processing and changesets.
  OData Protocol: Familiarize yourself with the OData protocol specifications, particularly regarding batch requests and function imports.
  SAP Notes: Look for any relevant SAP Notes or knowledge base articles that may address this specific error or provide additional context.
  
  By following these steps, you should be able to resolve the error and understand the limitations of the operations you are trying to perform in your OData service.