How To Fix CLB2011 - No dictionary support for multiple instances (key &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: CLB2 - SAIL: Common messages

• Message number: 011

• Message text: No dictionary support for multiple instances (key &1)

What causes this issue?

An attempt was made to add a value to the class CL_CLB2_DICTIONARY with
a key that already exists in the dictionary.
Duplicate keys are not allowed in dictionaries.

System Response

The method in progress was cancelled.

How to fix this error?

A code change is required.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CLB2011 - No dictionary support for multiple instances (key &1) ?

  The SAP error message CLB2011 indicates that there is no dictionary support for multiple instances of a certain key in the context of the SAP system. This typically occurs in scenarios involving the use of the SAP Classification System or when dealing with characteristics and values in a classification context.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Multiple Instances: The system is trying to handle multiple instances of a classification key that is not supported by the dictionary. This can happen if the classification key is defined in a way that does not allow for multiple entries.
  Configuration Issues: There may be a misconfiguration in the classification settings or the way the characteristics are defined.
  Data Integrity Issues: There could be inconsistencies or errors in the data being processed, such as duplicate entries or incorrect relationships between objects.
  
  Solution:
  To resolve the CLB2011 error, you can take the following steps:
  
  
  Check Configuration:
  
  Review the configuration of the classification system. Ensure that the characteristics and classes are set up correctly and that they allow for multiple instances if that is required.
  Verify that the classification key is defined properly in the system.
  
  
  
  Data Validation:
  
  Check the data being processed for any inconsistencies or duplicates. Ensure that there are no conflicting entries for the classification key in question.
  Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to inspect the classes and their characteristics.
  
  
  
  Review Custom Code:
  
  If there is any custom code or enhancements that interact with the classification system, review that code to ensure it is not causing the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the classification system for any specific guidance on handling this error.
  
  
  
  SAP Support:
  
  If the issue persists, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant context to help diagnose the problem.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), CL03 (Display Class), and CL24 (Display Characteristics).
  SAP Notes: Search for SAP Notes related to the CLB2011 error for any patches or updates that may address the issue.
  Classification System: Understanding the SAP Classification System and how it manages characteristics and values can provide insights into potential misconfigurations.
  
  By following these steps, you should be able to identify the root cause of the CLB2011 error and implement a suitable solution.