How To Fix UD421 - More than one node was selected

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 421

• Message text: More than one node was selected

What causes this issue?

You have selected more than one node followed by the function
"Insert...".

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?

Deselect the selected nodes and select only the nodes under or next
to which you wish to insert other nodes or else position the cursor
on these nodes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UD421 - More than one node was selected ?

  The SAP error message UD421 ("More than one node was selected") typically occurs in the context of using the SAP User Interface (UI) when a user attempts to perform an action that requires a single selection, but multiple nodes or items have been selected instead. This can happen in various scenarios, such as when working with hierarchical data structures or tree views.
  Cause:
  The primary cause of this error is that the system expects a single selection for a particular operation, but the user has selected multiple items or nodes. This can happen in various contexts, such as:
  
  When trying to execute a function that only applies to a single item (e.g., editing, deleting, or viewing details).
  When navigating through a tree structure or a list where the action is not applicable to multiple selections.
  
  Solution:
  To resolve the UD421 error, you can follow these steps:
  
  
  Check Your Selection: Review the items or nodes you have selected. Ensure that you only have one item selected when performing the action that triggered the error.
  
  
  Deselect Extra Items: If you have multiple items selected, deselect the additional items so that only one remains selected.
  
  
  Use the Correct Functionality: Make sure you are using the correct functionality for the action you want to perform. If the action is meant for a single item, ensure that you are following the correct procedure.
  
  
  Consult Documentation: If you are unsure about the selection requirements for a specific action, refer to the SAP documentation or help resources related to the module you are using.
  
  
  User Training: If this error occurs frequently, consider providing training or guidance to users on how to properly select items in the SAP UI.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific updates or patches related to the error message. Sometimes, there may be known issues or fixes provided by SAP.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same issue and what solutions they have found.
  Transaction Codes: Familiarize yourself with the transaction codes and functionalities you are using, as some may have specific selection requirements.
  
  If the problem persists after following these steps, it may be beneficial to contact your SAP support team for further assistance.