How To Fix DS437 - List &1 to be appended does not exist in tree &2, node &3

SAP Error Message - Details

• Message type: E = Error

• Message class: DS - Messages for Editing Text Elements in ABAP Programs

• Message number: 437

• Message text: List &1 to be appended does not exist in tree &2, node &3

What causes this issue?

The list specified under "Append list" either does not exist in the
selected node, or it has already been appended to another list.
You cannot append lists to more than one other list.

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

System Response

How to fix this error?

Choose a list that exists in the selected tree or node.
The list must be a basic list, that is, it may not already be appended
to another 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 DS437 - List &1 to be appended does not exist in tree &2, node &3 ?

  The SAP error message DS437 indicates that there is an issue with a list that is supposed to be appended to a specific tree structure, but the list does not exist in the specified tree or node. This error typically arises in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when dealing with hierarchies or data structures.
  Cause:
  
  Non-Existent List: The list you are trying to append does not exist in the specified tree structure. This could be due to a typo in the list name or the list not being created or activated.
  Incorrect Tree or Node Reference: The tree or node you are referencing may not be correct, leading to the system being unable to find the list.
  Authorization Issues: There may be authorization issues preventing access to the list or tree.
  Data Model Changes: Changes in the data model or structure may have led to the list being removed or renamed.
  
  Solution:
  
  Verify List Existence: Check if the list you are trying to append actually exists in the specified tree. You can do this by navigating to the relevant transaction or using the appropriate reporting tools in SAP.
  Check Tree and Node References: Ensure that the tree and node references you are using are correct. Double-check the names and paths.
  Review Authorizations: Make sure that you have the necessary authorizations to access the list and the tree structure. If not, contact your SAP administrator to grant the required permissions.
  Recreate or Activate the List: If the list does not exist, you may need to create it or activate it if it has been deactivated.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the version of SAP you are using.
  
  Related Information:
  
  Transaction Codes: Depending on your SAP version, you may use transaction codes like RSA1 (Data Warehousing Workbench) to check the data models and structures.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Support Forums: Consider visiting SAP Community forums or other support platforms where similar issues may have been discussed.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.