How To Fix RSAN_MDL103 - Assignment is not possible: the source has already been assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_MDL - Messages on Analysis Object Model

• Message number: 103

• Message text: Assignment is not possible: the source has already been assigned

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 RSAN_MDL103 - Assignment is not possible: the source has already been assigned ?

  The SAP error message RSAN_MDL103 indicates that there is an issue with the assignment of a source to a data model in SAP BW (Business Warehouse). Specifically, it means that the source you are trying to assign has already been assigned to another data model or is otherwise not available for reassignment.
  Cause:
  
  Duplicate Assignment: The source object (like an InfoProvider, DataSource, etc.) is already assigned to another data model.
  Incorrect Configuration: There may be a configuration issue where the source is not properly set up for the intended data model.
  Data Model Locking: The data model might be locked for editing by another user or process.
  Technical Issues: There could be underlying technical issues or inconsistencies in the BW system.
  
  Solution:
  
  
  Check Existing Assignments:
  
  Go to the data model in question and check if the source is already assigned to another model. If it is, you will need to either remove it from the other model or choose a different source for your current model.
  
  
  
  Remove Assignment:
  
  If you find that the source is assigned to another model and you want to reassign it, you can remove it from the previous assignment. Make sure to do this carefully, as it may affect other processes.
  
  
  
  Review Configuration:
  
  Ensure that the source is correctly configured and that there are no issues with its setup. Check for any inconsistencies or errors in the source object.
  
  
  
  Check for Locks:
  
  Verify if the data model is locked. If it is, you may need to wait until the lock is released or contact your system administrator to unlock it.
  
  
  
  Consult Logs:
  
  Check the system logs for any additional error messages or warnings that might provide more context about the issue.
  
  
  
  System Restart:
  
  In some cases, a simple restart of the BW system or the relevant application server can resolve temporary issues.
  
  
  
  Contact Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the error message RSAN_MDL103 for any patches or updates that might address the issue.
  Documentation: Review the SAP BW documentation for best practices on data model management and source assignments.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.