How To Fix /EACC/DMB001 - DataSource &1 already created with InfoSource &3

/EACC/DMB001 - Overview

• Message type: E = Error

• Message class: /EACC/DMB -

• Message number: 001

• Message text: DataSource &1 already created with InfoSource &3

Self-Explanatory Message

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/EACC/DMB001 - Details

• The SAP error message /EACC/DMB001 DataSource &1 already created with InfoSource &3 typically occurs in the context of SAP Data Warehousing or SAP BW (Business Warehouse) when you are trying to create a DataSource that has already been defined for a specific InfoSource. This error indicates that there is a conflict because the DataSource you are trying to create is already associated with the specified InfoSource.
  
  Cause:
  
  Duplicate DataSource: The DataSource you are attempting to create already exists in the system for the specified InfoSource.
  Incorrect Configuration: There may be a misconfiguration or misunderstanding regarding the DataSource and InfoSource relationship.
  Transport Issues: If you are transporting objects between systems, the DataSource might have been transported already, leading to this conflict.
  
  
  Solution:
  
  
  Check Existing DataSources: 
  
  Go to the DataSource maintenance transaction (e.g., RSA1 or RSO2) and check if the DataSource already exists for the specified InfoSource.
  If it exists, you may need to modify or use the existing