How To Fix RSDMD156 - No master data update possible during a change run

RSDMD156 - Overview

• Message type: E = Error

• Message class: RSDMD - Messages for master data

• Message number: 156

• Message text: No master data update possible during a change run

What causes this issue?

You have tried to update master data. However, there is a realignment
run taking place at the moment, which is preventing this. This can
happen if a data request and a realignment run are scheduled in the
background and are run at the same time. The scheduler cannot predict
this behavior.

System Response

The update of master data (attributes or texts) is not executed.

How to fix this error?

After the realignment run has finished, the corresponding data packet
can be updated from the monitor.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDMD156 - No master data update possible during a change run ?

  The SAP error message RSDMD156, which states "No master data update possible during a change run," typically occurs in the context of SAP BW (Business Warehouse) when there is an attempt to update master data while a change run is in progress. This can happen during data loading processes or when master data is being modified.
  
  Cause:
  
  Change Run in Progress: The most common cause of this error is that a change run is currently active for the master data. A change run is a process that updates the master data in the InfoObject and is usually triggered by data loads or changes in the underlying data.
  Locking Mechanism: SAP BW uses a locking mechanism to prevent data inconsistencies. If a change run is active, it locks the master data, preventing any updates until the change run is completed.
  Data Load Issues: If there are issues with the data load process, such as errors