How To Fix /SAPAPO/OM_ERROR2392 - Reference counter for ATP time series is negative

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 392

• Message text: Reference counter for ATP time series is negative

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR2392 - Reference counter for ATP time series is negative ?

  The SAP error message /SAPAPO/OM_ERROR2392 indicates that there is a negative reference counter for an Available-to-Promise (ATP) time series in the Advanced Planning and Optimization (APO) module. This error typically arises when there is an inconsistency in the data related to the ATP checks, particularly in the context of time series data management.
  Cause:
  
  Data Inconsistency: The reference counter for the ATP time series may have been incorrectly updated due to data inconsistencies or errors during transactions.
  Incorrect Configuration: There may be issues with the configuration of the ATP settings or the time series itself.
  Data Deletion: If data related to the ATP time series was deleted or modified improperly, it could lead to a negative reference counter.
  Concurrency Issues: Simultaneous updates or transactions might lead to race conditions, causing the reference counter to go negative.
  
  Solution:
  
  Check Data Consistency: Use transaction codes like /SAPAPO/TS_CHECK to check the consistency of the time series data. This can help identify any inconsistencies that need to be resolved.
  Rebuild Time Series: If the time series is corrupted, you may need to rebuild it. This can be done using the transaction /SAPAPO/TS_REBUILD.
  Review Configuration: Ensure that the ATP configuration settings are correct. Check the settings in the APO system to ensure they align with the business requirements.
  Data Correction: If you identify specific records causing the issue, you may need to correct or delete those records manually.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  System Logs: Review system logs for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/TS_CHECK, /SAPAPO/TS_REBUILD, and others that are used for managing time series data.
  SAP Documentation: Refer to the official SAP documentation for Advanced Planning and Optimization for detailed information on ATP and time series management.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the error related to the negative reference counter for ATP time series in SAP APO.