How To Fix RSTRAN090 - Transformations already exist for &1

RSTRAN090 - Overview

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 090

• Message text: Transformations already exist for &1

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 RSTRAN090 - Transformations already exist for &1 ?

  The SAP error message RSTRAN090, which states "Transformations already exist for &1," typically occurs in the context of data transformation processes within SAP BW (Business Warehouse) or SAP BW/4HANA. This error indicates that there are already existing transformations for the specified source and target objects, which prevents the creation of a new transformation.
  
  Cause:
  
  Existing Transformations: The primary cause of this error is that there are already one or more transformations defined for the specified source object (e.g., InfoSource, DataSource) and target object (e.g., InfoProvider, DataStore Object).
  Duplicate Creation Attempt: The user is attempting to create a new transformation without first checking if one already exists.
  System Configuration: In some cases, system configuration or settings may lead to this error if the system is not recognizing the existing transformations correctly.
  
  
  Solution:
  
  
  Check Existing Transformations:
  
  Navigate to the relevant transformation maintenance transaction (e.g., RSA1 for Data Warehousing Workbench).
  Look for existing transformations between the specified source and target objects.
  If