How To Fix GW023 - No parameter list received

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 023

• Message text: No parameter list received

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GW023 - No parameter list received ?

  The SAP error message GW023 ("No parameter list received") typically occurs in the context of SAP Gateway services, particularly when there is an issue with the communication between the SAP system and the client application (like an SAP Fiori app or an external system). This error indicates that the expected parameters for a function call or service request were not received by the SAP Gateway.
  Causes:
  
  Missing Parameters: The client application did not send the required parameters in the request.
  Incorrect Service Configuration: The OData service might not be properly configured or activated in the SAP Gateway.
  Network Issues: There could be network-related issues that prevent the parameters from being transmitted correctly.
  Client-Side Errors: The client application may have bugs or issues that prevent it from sending the correct request format.
  Authorization Issues: The user may not have the necessary authorizations to access the service, leading to incomplete requests.
  
  Solutions:
  
  Check Request Parameters: Ensure that the client application is sending all required parameters in the request. Review the API documentation for the service to confirm the expected parameters.
  Service Activation: Verify that the OData service is activated in the SAP Gateway. You can do this using transaction code /IWFND/MAINT_SERVICE to check the status of the service.
  Debugging: Use transaction code /IWFND/ERROR_LOG to check for any additional error messages or logs that might provide more context about the issue.
  Network Configuration: Ensure that there are no network issues or firewalls blocking the communication between the client and the SAP system.
  Client Application Logs: Check the logs of the client application for any errors or warnings that might indicate why the parameters were not sent.
  Authorization Check: Ensure that the user has the necessary authorizations to access the OData service. You can check this in transaction code SU53 after the error occurs.
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is a technology that allows you to connect devices, environments, and applications to SAP systems. It enables the creation of OData services that can be consumed by various clients.
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. Understanding the structure of OData requests and responses can help in troubleshooting issues.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific version of SAP you are using. You can search for relevant notes in the SAP Support Portal.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.