How To Fix RSO851 - Upgrade is running (phase &1). You cannot change objects until complete.

RSO851 - Overview

• Message type: E = Error

• Message class: RSO - BW Repository

• Message number: 851

• Message text: Upgrade is running (phase &1). You cannot change objects until complete.

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSO851 - Upgrade is running (phase &1). You cannot change objects until complete. ?

  The SAP error message RSO851 indicates that an upgrade process is currently running in the system, and as a result, you cannot make changes to objects until the upgrade is complete. This message is typically encountered in the context of SAP BW (Business Warehouse) or other SAP systems during a system upgrade or maintenance activity.
  
  Cause:
  
  Ongoing Upgrade Process: The primary cause of this error is that an upgrade or a similar maintenance task is currently in progress. During this time, the system locks certain objects to ensure data integrity and consistency.
  Long-running Processes: Sometimes, the upgrade process may take longer than expected due to various factors such as system performance, data volume, or issues encountered during the upgrade.
  
  
  Solution:
  
  Wait for Completion: The simplest solution is to wait until the upgrade process is completed. You can monitor the progress of the upgrade through transaction codes like SM37 (Job Monitoring) or SM21 (System Log) to