How To Fix FSH_SD_COMMON166 - Cannot perform re-ATP ; system or communication failed

SAP Error Message - Details

• Message type: E = Error

• Message class: FSH_SD_COMMON -

• Message number: 166

• Message text: Cannot perform re-ATP ; system or communication failed

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 FSH_SD_COMMON166 - Cannot perform re-ATP ; system or communication failed ?

  The SAP error message FSH_SD_COMMON166 ("Cannot perform re-ATP; system or communication failed") typically occurs in the context of Advanced ATP (Available-to-Promise) checks in SAP, particularly when there is an issue with the system's ability to perform the re-ATP check due to communication problems or system errors.
  Causes:
  
  System Communication Issues: There may be a problem with the connection between the SAP system and the database or other systems involved in the ATP process.
  Configuration Issues: Incorrect configuration settings in the ATP or related modules can lead to this error.
  Performance Issues: If the system is under heavy load or if there are performance bottlenecks, it may fail to process the ATP request.
  Missing Authorizations: The user may not have the necessary authorizations to perform the ATP check.
  Technical Errors: Bugs or issues in the SAP system or in the underlying code can also lead to this error.
  
  Solutions:
  
  Check System Status: Verify that the SAP system and all related services are up and running. Check for any system alerts or downtime.
  Review Communication Settings: Ensure that the communication settings between the SAP system and the database or other systems are correctly configured.
  Analyze Performance: Monitor system performance and check for any bottlenecks. You may need to optimize database queries or increase system resources.
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the ATP check. You can do this by reviewing the user's roles and permissions.
  Review Configuration: Check the configuration settings for ATP in the relevant modules (like SD, MM, etc.) to ensure they are set up correctly.
  Debugging: If the issue persists, consider enabling debugging to trace the error and identify the root cause. This may require assistance from a technical consultant.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SM21 (System Log), ST22 (Dump Analysis), and SM37 (Job Monitoring) to gather more information about the error.
  SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurred.
  Documentation: Review the official SAP documentation for ATP and related modules to ensure that all configurations and settings are correctly implemented.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the FSH_SD_COMMON166 error message.