How To Fix RSAR781 - Name range for prefix for source system / transfer structure exhausted

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 781

• Message text: Name range for prefix for source system / transfer structure exhausted

What causes this issue?

The namespace for prefixes for source system / transfer structure is exh
austed.

System Response

No further source systems could be connected.

How to fix this error?

Check whether there are any unused or no longer used source systems. If
so delete these systems, so that free prefixes are available again.
If this is not possible or is not successful, using the error number (ID
) search for relevant notes in the SAP Support Portal, and create a new
problem message if necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR781 - Name range for prefix for source system / transfer structure exhausted ?

  The SAP error message RSAR781 indicates that the name range for the prefix for a source system or transfer structure has been exhausted. This typically occurs in the context of SAP BW (Business Warehouse) when there are too many objects (like InfoObjects, DataSources, etc.) that are using a specific naming convention or prefix, leading to a limitation being reached.
  Cause:
  
  Exhaustion of Name Range: Each source system or transfer structure in SAP BW has a limited range of names that can be assigned. If you have created many objects with similar prefixes, you may run out of available names.
  Configuration Issues: Incorrect configuration or an excessive number of DataSources or InfoObjects associated with a particular source system can lead to this error.
  System Limitations: SAP systems have inherent limitations on the number of objects that can be created under certain namespaces or prefixes.
  
  Solution:
  
  Review Existing Objects: Check the existing DataSources, InfoObjects, and other related objects to see if there are any that can be deleted or renamed to free up the name range.
  Change Naming Conventions: If possible, consider changing the naming convention for new objects to avoid conflicts with existing names. This can help in managing the name space more effectively.
  Use Different Prefixes: If you are consistently running into this issue, consider using different prefixes for new DataSources or InfoObjects to avoid exhausting the name range.
  System Cleanup: Perform a cleanup of unused or obsolete objects in the system. This can help in reclaiming the name space.
  Consult SAP Notes: Check for any relevant SAP Notes that might provide additional guidance or patches related to this error. SAP frequently updates its documentation and may have specific recommendations for your version.
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for guidelines on naming conventions and object management.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  System Administration: Work with your SAP Basis team to monitor the system for any underlying issues that may contribute to this error.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.