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

UCLP066 - Overview

• 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