How To Fix SAP_ACO023 - Parameter &1 only exists in ACO proxy

SAP Error Message - Details

• Message type: E = Error

• Message class: SAP_ACO - SAP ACO Messages

• Message number: 023

• Message text: Parameter &1 only exists in ACO proxy

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAP_ACO023 - Parameter &1 only exists in ACO proxy ?

  The SAP error message SAP_ACO023 indicates that a parameter specified in your configuration or code is only available in the ACO (Application Communication Object) proxy and not in the actual application context. This typically occurs when there is a mismatch between the parameters expected by the application and those defined in the ACO proxy.
  Cause:
  
  Parameter Mismatch: The parameter you are trying to use is defined in the ACO proxy but not in the actual application context. This can happen if the application has been updated or if there are discrepancies in the configuration.
  Incorrect Configuration: The configuration settings for the ACO might not be aligned with the application settings, leading to the system not recognizing the parameter.
  Version Issues: If there are version differences between the ACO proxy and the application, certain parameters may not be available in the version you are using.
  
  Solution:
  
  Check Parameter Definition: Verify that the parameter you are trying to use is correctly defined in the ACO proxy. You can do this by checking the ACO configuration in the SAP system.
  Update Configuration: If the parameter is indeed only available in the ACO proxy, you may need to update your application configuration to either include this parameter or to use an alternative that is available in the application context.
  Consult Documentation: Review the SAP documentation for the specific application and ACO proxy you are working with to understand the parameters that are available and their correct usage.
  System Update: If you suspect that the issue is due to version discrepancies, consider updating your SAP system or the specific components involved to ensure compatibility.
  Contact SAP Support: If the issue persists after checking the above points, it may be beneficial to contact SAP support for further assistance, especially if this is a production issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context on the parameters in question.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to explore the ACO proxy and its parameters.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the parameter is being called and why it is not recognized.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.