How To Fix RSDMD126 - Master data &1 (SID &2) is used in &3 and, therefore, not deleted.

RSDMD126 - Overview

• Message type: E = Error

• Message class: RSDMD - Messages for master data

• Message number: 126

• Message text: Master data &1 (SID &2) is used in &3 and, therefore, not deleted.

Self-Explanatory Message

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RSDMD126 - Details

• The SAP error message RSDMD126 indicates that a specific master data object (identified by the SID - Surrogate ID) cannot be deleted because it is still being used in another object or context. This is a common issue when dealing with master data in SAP BW (Business Warehouse) or other SAP modules where data integrity is crucial.
  
  Cause:
  The error occurs when you attempt to delete a master data object (like a characteristic or hierarchy) that is still referenced in one or more of the following:
  
  InfoObjects
  InfoProviders (like InfoCubes, DataStore Objects)
  Queries
  Transformations
  DataSources
  Other master data objects
  
  
  Solution:
  To resolve this error, you need to identify where the master data object is being used and take appropriate actions. Here are the steps you can follow:
  
  
  Identify Dependencies:
  
  Use transaction codes like RSD1 (for InfoObjects) or RSA1 (for Data Warehousing Workbench) to check where the master data is being used.
  Look for any InfoProviders, queries, or transformations that reference the master data