How To Fix FMCA_BRFPLUS159 - Duplicate prevention key already processed for this object

SAP Error Message - Details

• Message type: E = Error

• Message class: FMCA_BRFPLUS - PSCD: BRFPLUS in TRM

• Message number: 159

• Message text: Duplicate prevention key already processed for this object

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FMCA_BRFPLUS159 - Duplicate prevention key already processed for this object ?

  The SAP error message FMCA_BRFPLUS159 indicates that there is a duplicate prevention key that has already been processed for a specific object in the Business Rule Framework (BRF+). This error typically arises when there is an attempt to process a rule or decision that has already been executed for the same key, which is intended to prevent duplicate processing of the same data.
  Cause:
  
  Duplicate Processing: The error occurs when the system detects that a particular key (which is used to uniquely identify a transaction or decision) has already been processed. This is a safeguard to ensure that the same transaction is not executed multiple times, which could lead to inconsistencies or errors in data processing.
  Configuration Issues: There may be issues with the configuration of the BRF+ rules or the way the keys are being generated or managed.
  Concurrency Issues: If multiple processes are trying to execute the same rule simultaneously, it may lead to this error if they are using the same prevention key.
  
  Solution:
  
  Check for Duplicates: Review the data or transactions being processed to ensure that there are no duplicates. If the same key is being used for multiple transactions, you may need to adjust the logic to generate unique keys.
  Adjust Key Generation Logic: If the key generation logic is not producing unique keys, you may need to modify it to ensure that each transaction has a unique identifier.
  Review BRF+ Configuration: Check the configuration of the BRF+ rules to ensure that they are set up correctly and that the duplicate prevention mechanism is functioning as intended.
  Error Handling: Implement error handling in your application to manage situations where this error might occur, allowing for retries or alternative processing paths.
  Consult Documentation: Refer to SAP documentation or notes related to BRF+ and the specific error message for additional insights or updates that may address the issue.
  
  Related Information:
  
  BRF+ Documentation: Review the official SAP documentation for BRF+ to understand how duplicate prevention works and best practices for configuring rules.
  SAP Notes: Check for any relevant SAP Notes that may provide fixes or workarounds for this specific error.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.