How To Fix /IWFND/OCI_MSG023 - Error in read call to External server

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/OCI_MSG -

• Message number: 023

• Message text: Error in read call to External server

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 /IWFND/OCI_MSG023 - Error in read call to External server ?

  The SAP error message /IWFND/OCI_MSG023 Error in read call to External server typically indicates that there is an issue with the communication between the SAP system and an external server, often related to OData services or other web services. This error can arise due to various reasons, including network issues, configuration problems, or issues with the external server itself.
  Causes
  
  Network Issues: There may be connectivity problems between the SAP system and the external server, such as firewall restrictions or DNS resolution issues.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external server can lead to failed communication.
  Authentication Issues: If the external server requires authentication, incorrect credentials or expired tokens can cause the read call to fail.
  Service Availability: The external server may be down or the specific service endpoint may not be available.
  Timeouts: The request may be timing out due to slow response times from the external server.
  Data Format Issues: The data being sent or received may not be in the expected format, leading to parsing errors.
  
  Solutions
  
  Check Network Connectivity: Ensure that the SAP system can reach the external server. You can use tools like ping or telnet to test connectivity.
  Review Configuration Settings: Verify the configuration settings in the SAP system for the OData service or external call. Check the URL, authentication methods, and any other relevant parameters.
  Check Authentication: If the external server requires authentication, ensure that the credentials are correct and that any tokens are valid.
  Monitor External Server: Check the status of the external server to ensure it is up and running. Look for any logs or alerts that might indicate issues.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the SAP system for the external call.
  Validate Data Formats: Ensure that the data being sent to and received from the external server is in the correct format (e.g., JSON, XML) and adheres to the expected schema.
  
  Related Information
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Use transaction codes like /IWFND/ERROR_LOG to view detailed error logs related to OData services and external calls.
  Debugging: If you have access to the development environment, consider debugging the OData service to trace the exact point of failure.
  External Server Logs: If possible, check the logs of the external server to see if there are any errors or warnings that correspond to the time of the failed call.
  
  By systematically checking these areas, you should be able to identify and resolve the cause of the /IWFND/OCI_MSG023 error.