How To Fix S95_MESSAGES999 - Response message received from MES:&1

SAP Error Message - Details

• Message type: E = Error

• Message class: S95_MESSAGES - S95 Message Processing

• Message number: 999

• Message text: Response message received from MES:&1

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message S95_MESSAGES999 - Response message received from MES:&1 ?

  The SAP error message S95_MESSAGES999, which states "Response message received from MES: &1," typically indicates that there is an issue with the communication between SAP and a Manufacturing Execution System (MES). This error can arise due to various reasons, including configuration issues, network problems, or data inconsistencies.
  Causes:
  
  Communication Issues: There may be network connectivity problems between SAP and the MES.
  Configuration Errors: Incorrect settings in the integration configuration between SAP and the MES can lead to this error.
  Data Format Issues: The data being sent or received may not be in the expected format, leading to parsing errors.
  Message Handling: The MES may be sending a response that SAP does not recognize or cannot process.
  Authorization Issues: There may be insufficient permissions for the user or system trying to access the MES.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is a stable network connection between SAP and the MES. You can use tools like ping or traceroute to diagnose connectivity issues.
  Review Configuration Settings: Verify the integration settings in both SAP and the MES. Ensure that all parameters are correctly configured, including endpoints, message formats, and protocols.
  Examine the Response Message: Look at the specific response message indicated by "&1" in the error message. This may provide clues about what went wrong. You may need to consult the MES documentation or support for details on the response.
  Data Validation: Ensure that the data being sent to the MES is valid and conforms to the expected format. This may involve checking for required fields, data types, and value ranges.
  Check Logs: Review the application logs in both SAP and the MES for any additional error messages or warnings that could provide more context about the issue.
  User Permissions: Ensure that the user or system account has the necessary permissions to access the MES and perform the required operations.
  
  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 to common problems.
  Documentation: Refer to the integration documentation for both SAP and the MES to ensure that all configurations are correct.
  Support: If the issue persists, consider reaching out to SAP support or the support team for the MES for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the S95_MESSAGES999 error message.