How To Fix RSOBI_MF042 - DataSource &2 is already assigned to InfoSource &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSOBI_MF - Messages for SOBI Model Factory

• Message number: 042

• Message text: DataSource &2 is already assigned to InfoSource &1

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSOBI_MF042 - DataSource &2 is already assigned to InfoSource &1 ?

  The SAP error message RSOBI_MF042 indicates that a DataSource is already assigned to an InfoSource, which means that the system is preventing you from making a duplicate assignment. This error typically occurs during the process of data extraction or when trying to configure DataSources and InfoSources in the SAP BW (Business Warehouse) environment.
  Cause:
  The primary cause of this error is that the DataSource you are trying to assign to an InfoSource is already linked to that InfoSource or another InfoSource. This can happen if:
  
  You are attempting to assign the same DataSource to multiple InfoSources without proper configuration.
  There is a misunderstanding of the existing assignments in the system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Assignments:
  
  Go to the SAP BW system and check the existing assignments of the DataSource. You can do this by navigating to the DataSource in the Data Warehousing Workbench (transaction code RSA1).
  Look for the InfoSource to which the DataSource is already assigned.
  
  
  
  Remove or Modify Existing Assignment:
  
  If the DataSource is already assigned to an InfoSource that you do not need, you can remove that assignment.
  If you need to keep the existing assignment, consider whether you can use the existing InfoSource instead of creating a new one.
  
  
  
  Use a Different DataSource:
  
  If you need to assign a DataSource to a different InfoSource, ensure that you are using a DataSource that is not already assigned to another InfoSource.
  
  
  
  Check for Transport Requests:
  
  If you are working in a development environment and transporting changes to a production environment, ensure that the transport requests are correctly managed and that there are no conflicts.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific DataSource and InfoSource you are working with for any additional configuration requirements or limitations.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  RSA1: Data Warehousing Workbench
  RSO2: Maintain InfoSources
  RSO1: Maintain DataSources
  
  
  
  SAP Notes: 
  
  Check SAP Notes for any known issues or updates related to the specific DataSource or InfoSource you are working with.
  
  
  
  SAP Community: 
  
  Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  
  By following these steps, you should be able to resolve the RSOBI_MF042 error and successfully manage your DataSource and InfoSource assignments in SAP BW.