How To Fix RLB121 - Old Reuse Library can no longer be edited (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: RLB - Reuse Library

• Message number: 121

• Message text: Old Reuse Library can no longer be edited (see long text)

What causes this issue?

The Reuse Library has been completely redesigned for Release 4.6C.
The data storage and presentation have been enhanced.
Unfortunately there is no automatic conversion from the old to the new
structure. Therefore you have to carry out the conversion manually.
To do this start transaction <DS:TRAN.SLIBN>SLIBN</>. There is further
information on creating and changing libraries in the application help.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RLB121 - Old Reuse Library can no longer be edited (see long text) ?

  The SAP error message RLB121, which states "Old Reuse Library can no longer be edited (see long text)," typically occurs when you are trying to edit a reuse library that is outdated or has been deprecated in the SAP system. This can happen in various contexts, such as when working with ABAP programs or when trying to modify components that rely on older libraries.
  Cause:
  
  Outdated Library: The reuse library you are trying to edit is no longer supported or has been replaced by a newer version.
  System Upgrade: If your SAP system has been upgraded, certain libraries may have been marked as obsolete.
  Development Environment: You might be working in a development environment where certain libraries are locked or restricted from editing.
  
  Solution:
  
  Check for Updates: Look for a newer version of the reuse library that you can use instead. You may need to consult the SAP documentation or support for the latest libraries.
  Use Alternative Libraries: If the library is deprecated, consider using alternative libraries or components that provide similar functionality.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this issue. There may be specific instructions or patches available.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. They can provide guidance based on your specific system configuration and version.
  Review Long Text: The error message often has a long text that provides additional context or instructions. Make sure to review this long text for any specific recommendations.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for information on reuse libraries and their usage.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Version Compatibility: Ensure that your development environment is compatible with the libraries you are trying to use.
  
  By following these steps, you should be able to address the RLB121 error and continue your development work in SAP.