/IWBEP/CM_CP013 - Wrong method call: CREATE...REQUEST after calling ADD_...

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 013

• Message text: Wrong method call: CREATE...REQUEST after calling ADD_...

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message /IWBEP/CM_CP013 - Wrong method call: CREATE...REQUEST after calling ADD_... ?

  The SAP error message /IWBEP/CM_CP013 Wrong method call: CREATE...REQUEST after calling ADD_...? typically occurs in the context of SAP Gateway and OData services when there is an issue with the sequence of method calls in your service implementation. This error indicates that the OData service is expecting a certain sequence of operations, but the operations being performed do not align with that expectation.
  Cause:
  
  Incorrect Method Sequence: The error usually arises when you attempt to call a CREATE method after already calling an ADD_ method. In OData services, the sequence of operations is important, and calling methods in the wrong order can lead to this error.
  Implementation Issues: There may be issues in the implementation of the OData service, such as not properly handling the state of the entity or not following the expected lifecycle of the entity.
  Concurrency Issues: If multiple requests are being processed simultaneously, it may lead to conflicts in the state of the entity being manipulated.
  
  Solution:
  
  Check Method Calls: Review the sequence of method calls in your OData service implementation. Ensure that you are not calling CREATE after ADD_. The correct sequence should be followed as per the OData protocol.
  Debugging: Use debugging tools to trace the execution of your OData service. Check the flow of method calls and ensure that they are being executed in the correct order.
  Review Implementation: Go through the implementation of your OData service to ensure that it adheres to the expected patterns for handling entity creation and updates. Make sure that the methods are correctly defined and that the state of the entity is managed properly.
  Error Handling: Implement proper error handling in your service to catch and manage exceptions that may arise from incorrect method calls.
  Testing: Test your OData service with various scenarios to ensure that it behaves as expected and that the method calls are being made in the correct order.
  
  Related Information:
  
  SAP Gateway Documentation: Refer to the official SAP Gateway documentation for guidelines on implementing OData services and the expected method call sequences.
  OData Protocol: Familiarize yourself with the OData protocol specifications, which outline the expected behavior for CRUD operations.
  SAP Community: Engage with the SAP Community forums to seek advice from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the /IWBEP/CM_CP013 error and ensure that your OData service functions correctly.