How To Fix /IWBEP/CM_MGW_RT089 - You have defined &1 parameters. For &2 only two parameters supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 089

• Message text: You have defined &1 parameters. For &2 only two parameters supported.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT089 - You have defined &1 parameters. For &2 only two parameters supported. ?

  The SAP error message /IWBEP/CM_MGW_RT089 indicates that there is a mismatch in the number of parameters defined for a particular operation in your OData service. Specifically, it states that you have defined a certain number of parameters (&1), but for the operation in question, only two parameters are supported (&2).
  Cause:
  This error typically occurs in the context of OData services when:
  
  You have defined more parameters in your service implementation than the OData protocol allows for that specific operation (e.g., GET, POST, PUT, DELETE).
  The service definition in the SAP Gateway is not aligned with the actual implementation or the expected number of parameters for the operation.
  There may be a misconfiguration in the service metadata or the way the service is being called.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Service Definition:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Open the relevant service and check the entity set and the associated operations.
  Ensure that the number of parameters defined for the operation matches the expected number.
  
  
  
  Review the OData Service Implementation:
  
  If you have implemented custom logic for the OData service, review the implementation to ensure that it adheres to the expected parameter count.
  If you are using a function module or method, check its signature to confirm the number of parameters it accepts.
  
  
  
  Adjust the Parameters:
  
  If you have defined more parameters than necessary, consider removing the excess parameters from the service definition or adjusting the implementation to match the expected count.
  
  
  
  Regenerate the Service:
  
  After making changes, regenerate the service in the Service Builder and activate it.
  You may also need to refresh the service in the SAP Gateway Hub.
  
  
  
  Test the Service:
  
  Use the SAP Gateway Client (transaction /IWFND/GW_CLIENT) or a REST client to test the OData service and ensure that it works as expected without the error.
  
  
  
  Related Information:
  
  OData Protocol: Familiarize yourself with the OData protocol specifications, especially regarding the number of parameters allowed for different types of operations.
  SAP Gateway Documentation: Review the official SAP documentation for the Gateway and OData services for best practices and guidelines.
  Debugging: If the issue persists, consider using debugging tools to trace the execution of the OData service and identify where the parameter mismatch occurs.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly.