/EACC/DMB023 - DataSource &1 and InfoSource &2 have already been created

SAP Error Message - Details

• Message type: E = Error

• Message class: /EACC/DMB -

• Message number: 023

• Message text: DataSource &1 and InfoSource &2 have already been created

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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AnswerBot

• What is the cause and solution for SAP error message /EACC/DMB023 - DataSource &1 and InfoSource &2 have already been created ?

  The SAP error message /EACC/DMB023 indicates that there is an attempt to create a DataSource and InfoSource that already exist in the system. This error typically arises during the process of data extraction or when setting up data sources in SAP BW (Business Warehouse) or SAP ECC (Enterprise Central Component).
  Cause:
  
  
  Duplicate Creation: The most common cause of this error is that the DataSource and InfoSource you are trying to create already exist in the system. This can happen if:
  
  The DataSource was previously created but not properly documented.
  There was an attempt to create the same DataSource multiple times.
  A transport request that included the DataSource was already imported into the target system.
  
  
  
  Incorrect Configuration: Sometimes, the configuration settings may lead to the system believing that a DataSource or InfoSource is being created when it already exists.
  
  
  Solution:
  
  
  Check Existing DataSources and InfoSources:
  
  Use transaction codes like RSA1 (Data Warehousing Workbench) or RSD1 (InfoObject Maintenance) to check if the DataSource and InfoSource already exist.
  If they do exist, you may need to modify or use the existing ones instead of trying to create new ones.
  
  
  
  Delete or Rename:
  
  If the existing DataSource or InfoSource is not needed, you can delete it. However, be cautious as this may affect other processes or reports.
  Alternatively, if you need to create a new version, consider renaming the new DataSource or InfoSource to avoid conflicts.
  
  
  
  Transport Requests:
  
  If the DataSource was created in a different environment (like development) and transported to the target environment (like production), ensure that the transport request was successful and that the DataSource is not being created again.
  
  
  
  Consult Documentation:
  
  Review any documentation or change logs to understand the history of the DataSource and InfoSource creation. This can help in identifying why the duplication is occurring.
  
  
  
  System Check:
  
  If you suspect a system issue, consider running consistency checks or consulting with your SAP Basis team to ensure that there are no underlying issues with the system.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  RSD1: InfoObject Maintenance
  RSMO: Monitor Data Load
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP Help documentation for DataSource and InfoSource management for best practices and guidelines.
  
  By following these steps, you should be able to resolve the error and proceed with your data extraction or configuration tasks in SAP.