How To Fix CO_MES_INT027 - Confirmation &1 from MES already successfully posted

SAP Error Message - Details

• Message type: E = Error

• Message class: CO_MES_INT - Integration with Manufacturing Execution Systems

• Message number: 027

• Message text: Confirmation &1 from MES already successfully posted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CO_MES_INT027 - Confirmation &1 from MES already successfully posted ?

  The SAP error message CO_MES_INT027, which states "Confirmation &1 from MES already successfully posted," typically occurs in the context of Manufacturing Execution Systems (MES) integration with SAP. This error indicates that a confirmation for a particular operation or production order has already been processed and recorded in the system, and therefore, a duplicate posting is not allowed.
  Cause:
  
  Duplicate Confirmation: The most common cause of this error is that the MES system has sent a confirmation for the same operation or production order more than once.
  Timing Issues: There may be timing issues where the MES sends a confirmation before the previous one has been fully processed in SAP.
  System Configuration: Incorrect configuration in the integration settings between SAP and the MES could lead to this error.
  Network Issues: Temporary network issues might cause the MES to resend the confirmation if it does not receive an acknowledgment from SAP.
  
  Solution:
  
  Check for Duplicates: Verify if the confirmation has indeed been posted already. You can check the relevant production order or operation in SAP to see if the confirmation exists.
  Review MES Logs: Look into the logs of the MES to identify if the confirmation was sent multiple times and understand the reason behind it.
  Adjust MES Configuration: If the MES is configured to send duplicate confirmations, adjust its settings to prevent this from happening in the future.
  Error Handling: Implement error handling in the MES to ensure that it does not resend confirmations unless necessary.
  Manual Intervention: If the confirmation needs to be reprocessed, you may need to manually reverse the previous confirmation in SAP before reprocessing the new one.
  Consult Documentation: Review the integration documentation between SAP and the MES for any specific guidelines or configurations that might help resolve the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Use transaction codes like CO11N (for confirmations) or COHV (for mass processing of confirmations) to manage confirmations.
  Integration Settings: Review the settings in the SAP system related to the integration with the MES, such as RFC connections and IDocs.
  Support: If the issue persists, consider reaching out to SAP support or your MES vendor for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the CO_MES_INT027 error effectively.