How To Fix /SAPAPO/OM_ERROR364 - Invalid confirmed start time of an activity

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR -

• Message number: 364

• Message text: Invalid confirmed start time of an activity

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR364 - Invalid confirmed start time of an activity ?

  The SAP error message /SAPAPO/OM_ERROR364 indicates that there is an issue with the confirmed start time of an activity in the Advanced Planning and Optimization (APO) module. This error typically arises when the system detects that the confirmed start time for an activity is invalid, which can occur due to various reasons.
  Causes:
  
  Incorrect Time Settings: The confirmed start time may fall outside the permissible time range defined in the planning parameters.
  Resource Availability: The resource assigned to the activity may not be available at the confirmed start time, leading to a conflict.
  Scheduling Conflicts: There may be overlapping activities or constraints that prevent the activity from starting at the confirmed time.
  Data Inconsistencies: There could be inconsistencies in the master data, such as incorrect lead times, production versions, or routing information.
  Changes in Demand or Supply: Changes in demand or supply can lead to a recalculation of schedules, resulting in invalid confirmed times.
  
  Solutions:
  
  Check Activity Details: Review the details of the activity in question, including the confirmed start time, and ensure that it aligns with the planning parameters.
  Resource Availability Check: Verify the availability of the resources assigned to the activity. Adjust the scheduling or resource allocation as necessary.
  Adjust Scheduling Parameters: If the confirmed start time is outside the permissible range, consider adjusting the scheduling parameters or constraints to allow for the activity to be scheduled correctly.
  Review Master Data: Ensure that all relevant master data (e.g., production versions, routing, lead times) is accurate and up to date.
  Recalculate the Schedule: If there have been changes in demand or supply, recalculate the schedule to reflect the new conditions.
  Consult Logs and Messages: Check the system logs and other error messages for additional context that may help identify the root cause of the issue.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/OM_ORDER to view and manage orders and activities in APO.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to SAP documentation for APO to understand the configuration settings related to scheduling and resource management.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who specializes in SAP APO for further assistance.