How To Fix UCLP066 - List &1 does not exist in the list hierarchy

SAP Error Message - Details

• Message type: E = Error

• Message class: UCLP - Messages for List Processor

• Message number: 066

• Message text: List &1 does not exist in the list hierarchy

What causes this issue?

List table <ZK>ET_LIST</> contains list &V1&, but this list is <ZH>not
</> contained in list hierarchy <ZK>ET_BLIST</>. However, list &V1& is
<ZH>not</> used by the list processor.

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?

Check if list &V1& is needed. Then, either add list &V1& to table
<ZK>ET_BLIST</>, or delete list &V1& from table <ZK>ET_LIST</>.

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 UCLP066 - List &1 does not exist in the list hierarchy ?

  The SAP error message UCLP066, which states "List &1 does not exist in the list hierarchy," typically occurs in the context of SAP's classification system or when dealing with lists in the SAP environment. This error indicates that the system is unable to find a specified list in the hierarchy that it is supposed to reference.
  Cause:
  
  Non-Existent List: The list you are trying to access or reference does not exist in the system.
  Incorrect List Name: There may be a typo or incorrect naming in the list identifier you are using.
  Hierarchy Issues: The list may not be properly linked or integrated into the hierarchy structure.
  Authorization Issues: The user may not have the necessary permissions to access the list.
  Data Deletion: The list may have been deleted or archived, making it unavailable for current operations.
  
  Solution:
  
  Verify List Existence: Check if the list you are trying to access actually exists in the system. You can do this by navigating to the relevant transaction or using the appropriate report to view existing lists.
  Check List Name: Ensure that the list name you are using is correct and matches exactly with what is defined in the system.
  Review Hierarchy Structure: If applicable, review the hierarchy structure to ensure that the list is properly integrated and linked.
  User Authorization: Confirm that you have the necessary authorizations to access the list. If not, contact your system administrator to grant the required permissions.
  Consult Documentation: Refer to SAP documentation or help resources for specific details about the list hierarchy and how to manage it.
  Contact Support: If the issue persists, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to manage lists or hierarchies (e.g., CL02 for changing classes, CL03 for displaying classes).
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Community Forums: SAP Community and other forums can be useful for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to identify the cause of the UCLP066 error and implement a solution to resolve it.