How To Fix /AIF/ERROR_HANDLING171 - Restart of messages is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/ERROR_HANDLING -

• Message number: 171

• Message text: Restart of messages is not possible

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 /AIF/ERROR_HANDLING171 - Restart of messages is not possible ?

  The SAP error message /AIF/ERROR_HANDLING171 indicating "Restart of messages is not possible" typically occurs in the context of the Application Interface Framework (AIF) when there is an issue with processing messages that have encountered errors. This error suggests that the system cannot restart the processing of certain messages due to specific conditions.
  Causes:
  
  Message Status: The message may be in a status that does not allow for a restart. For example, if the message has already been processed or if it is in a state that requires manual intervention.
  Configuration Issues: There may be configuration settings in AIF that prevent the restart of messages under certain conditions.
  Data Integrity Issues: The data associated with the message may be corrupted or incomplete, making it impossible to restart processing.
  Technical Errors: There could be underlying technical issues, such as database locks or connectivity problems, that prevent the message from being restarted.
  
  Solutions:
  
  Check Message Status: Review the status of the message in the AIF monitoring tools. If the message is in a state that does not allow for a restart, you may need to resolve the underlying issue first.
  Manual Intervention: If the message requires manual intervention, you may need to correct the data or configuration issues before attempting to restart.
  Reprocess the Message: If possible, you can try to reprocess the message manually by correcting any errors and then using the appropriate AIF transaction to reprocess it.
  Review Configuration: Check the AIF configuration settings to ensure that they are set up correctly for message processing and error handling.
  Consult Logs: Look at the application logs and AIF error logs for more detailed information about why the restart is not possible. This can provide insights into specific issues that need to be addressed.
  Contact SAP Support: If the issue persists and you cannot determine the cause, consider reaching out to SAP support for assistance. They can provide more detailed troubleshooting based on your specific system configuration and error context.
  
  Related Information:
  
  AIF Monitoring Tools: Familiarize yourself with the AIF monitoring tools available in your SAP system, such as transaction /AIF/ERR for error handling and monitoring.
  Documentation: Review the official SAP documentation for AIF, which provides guidelines on error handling and message processing.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate actions to resolve it.