How To Fix /SAPAPO/OM_SYNC090 - Downtime due to maintenance without reference to plant maintenance

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_SYNC -

• Message number: 090

• Message text: Downtime due to maintenance without reference to plant maintenance

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_SYNC090 - Downtime due to maintenance without reference to plant maintenance ?

  The SAP error message /SAPAPO/OM_SYNC090 typically indicates that there is a downtime in the system due to maintenance activities that are not related to plant maintenance. This error is often encountered in the context of SAP Advanced Planning and Optimization (APO) when the system is unable to perform certain operations because it is undergoing maintenance.
  Cause:
  
  System Maintenance: The most common cause of this error is scheduled maintenance activities in the SAP system that affect the availability of APO functionalities.
  Configuration Issues: There may be configuration settings that are not properly aligned, leading to the system being unable to process requests.
  Locking Mechanisms: Certain processes may be locked during maintenance, preventing other operations from being executed.
  Background Jobs: If there are background jobs running that are related to maintenance, they may cause temporary unavailability of certain functionalities.
  
  Solution:
  
  Check System Status: Verify if there is any scheduled maintenance or downtime communicated by your SAP Basis team. This can often be found in system notifications or through the SAP Solution Manager.
  Wait for Maintenance to Complete: If the downtime is planned, you may need to wait until the maintenance activities are completed.
  Contact SAP Basis Team: If you believe the downtime is unexpected, reach out to your SAP Basis team to investigate the issue further. They can check logs and system status to determine the cause of the downtime.
  Review Configuration: Ensure that the configuration settings in APO are correct and that there are no discrepancies that could lead to this error.
  Check Background Jobs: Review any running background jobs that may be causing the system to be in a maintenance state and see if they can be adjusted or rescheduled.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message. SAP Notes often provide insights into known issues and their resolutions.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide context to the downtime.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (to check background jobs) and SM12 (to check for locks) that can help diagnose the issue.
  Documentation: Refer to SAP documentation for APO and system maintenance procedures to understand how maintenance impacts system operations.
  
  If the issue persists after following these steps, it may be necessary to escalate the matter to SAP support for further assistance.